Document (#36366)

Author

Lokker, C.
Haynes, R.B
McKibbon, K.A.
Wilczynski, N.L.

Title

Determining the impact factors of secondary journals : A retrospective cohort study

Source

Journal of the American Society for Information Science and Technology. 62(2011) no.4, S.637-642

Year

2011

Abstract

Secondary journals such as Evidence-Based Medicine, ACP Journal Club, and Evidence-Based Nursing summarize, from over 150 clinical journals, articles that pass criteria for scientific merit, clinical relevance, and interest to practicing clinicians. We performed a retrospective cohort study to validate the selection process used to produce the secondary journals by calculating the 2007 impact factors for these journals using articles that were abstracted and originally published in 2005-2006. The 'impact factors' for the secondary journals were calculated using 2007 citations to included articles. These were compared to the published impact factors and mean citations of the source journals. 2005/2006 articles in the secondary journals were originally published in 82 journals with ISI impact factors (median 4.1, range 0.85-52.9). The calculated impact factors for the secondary journals were 39.5 for ACP Journal Club, 30.2 for Evidence-Based Medicine, and 9.3 for Evidence-Based Nursing. Limitations include articles coming from only 150 journal titles and the inclusion of these articles may in fact stimulate citations. We conclude that evidence-based secondary journals include articles at the time of publication that go on to garner more citations on average than other articles in the source publications.

Theme

Informetrie

Similar documents (author)

1. Haynes, D.: Idealist for Windows (1993) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:haynes in 7049) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 7049, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=7049)
   

2. Haynes, D.: Retention and control of electronic records (1994) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:haynes in 1049) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 1049, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=1049)
   

3. Haynes, S.L.: Too much information can leave you powerless : is today's information infirmation? (1996) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:haynes in 5687) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 5687, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=5687)
   

4. Haynes, C.: How to succeed in cyberspace : take yourself, your company or your organization online (1995) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:haynes in 1023) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 1023, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=1023)
   

5. Haynes, M.: Your Google algorithm cheat sheet : Panda, Penguin, and Hummingbird (2013) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:haynes in 3542) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 3542, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=3542)
   

Similar documents (content)

1. Shema, H.; Bar-Ilan, J.; Thelwall, M.: Do blog citations correlate with a higher number of future citations? : Research blogs as a potential source for alternative metrics (2014) 0.39

   0.3857351 = sum of:
     0.3857351 = product of:
       1.0714864 = sum of:
         0.05175148 = weight(abstract_txt:source in 2258) [ClassicSimilarity], result of:
           0.05175148 = score(doc=2258,freq=3.0), product of:
             0.07504612 = queryWeight, product of:
               1.0597534 = boost
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.013895673 = queryNorm
             0.68959564 = fieldWeight in 2258, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.056540042 = weight(abstract_txt:published in 2258) [ClassicSimilarity], result of:
           0.056540042 = score(doc=2258,freq=2.0), product of:
             0.1043145 = queryWeight, product of:
               1.5302368 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.013895673 = queryNorm
             0.5420152 = fieldWeight in 2258, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.09214457 = weight(abstract_txt:journal in 2258) [ClassicSimilarity], result of:
           0.09214457 = score(doc=2258,freq=4.0), product of:
             0.11465959 = queryWeight, product of:
               1.6043218 = boost
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.013895673 = queryNorm
             0.80363595 = fieldWeight in 2258, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.025741048 = weight(abstract_txt:based in 2258) [ClassicSimilarity], result of:
           0.025741048 = score(doc=2258,freq=2.0), product of:
             0.0731938 = queryWeight, product of:
               1.6548089 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.013895673 = queryNorm
             0.35168344 = fieldWeight in 2258, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.16761033 = weight(abstract_txt:citations in 2258) [ClassicSimilarity], result of:
           0.16761033 = score(doc=2258,freq=6.0), product of:
             0.16427831 = queryWeight, product of:
               2.217409 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.013895673 = queryNorm
             1.0202827 = fieldWeight in 2258, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.087221384 = weight(abstract_txt:evidence in 2258) [ClassicSimilarity], result of:
           0.087221384 = score(doc=2258,freq=1.0), product of:
             0.20804094 = queryWeight, product of:
               2.7898772 = boost
               5.3664136 = idf(docFreq=563, maxDocs=44421)
               0.013895673 = queryNorm
             0.41925105 = fieldWeight in 2258, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3664136 = idf(docFreq=563, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.11217809 = weight(abstract_txt:impact in 2258) [ClassicSimilarity], result of:
           0.11217809 = score(doc=2258,freq=3.0), product of:
             0.18128374 = queryWeight, product of:
               2.852862 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.013895673 = queryNorm
             0.6187984 = fieldWeight in 2258, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.24154493 = weight(abstract_txt:articles in 2258) [ClassicSimilarity], result of:
           0.24154493 = score(doc=2258,freq=6.0), product of:
             0.26407158 = queryWeight, product of:
               3.975864 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.013895673 = queryNorm
             0.9146949 = fieldWeight in 2258, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
         0.23675454 = weight(abstract_txt:journals in 2258) [ClassicSimilarity], result of:
           0.23675454 = score(doc=2258,freq=2.0), product of:
             0.41789123 = queryWeight, product of:
               5.864806 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.013895673 = queryNorm
             0.56654584 = fieldWeight in 2258, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.078125 = fieldNorm(doc=2258)
       0.36 = coord(9/25)
   

2. Mukherjee, B.: Do open-access journals in library and information science have any scholarly impact? : a bibliometric study of selected open-access journals using Google Scholar (2009) 0.35

   0.35216463 = sum of:
     0.35216463 = product of:
       0.978235 = sum of:
         0.023902984 = weight(abstract_txt:source in 3745) [ClassicSimilarity], result of:
           0.023902984 = score(doc=3745,freq=1.0), product of:
             0.07504612 = queryWeight, product of:
               1.0597534 = boost
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.013895673 = queryNorm
             0.3185106 = fieldWeight in 3745, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.03902983 = weight(abstract_txt:2005 in 3745) [ClassicSimilarity], result of:
           0.03902983 = score(doc=3745,freq=1.0), product of:
             0.10406178 = queryWeight, product of:
               1.2479187 = boost
               6.0010242 = idf(docFreq=298, maxDocs=44421)
               0.013895673 = queryNorm
             0.37506402 = fieldWeight in 3745, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0010242 = idf(docFreq=298, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.055397704 = weight(abstract_txt:published in 3745) [ClassicSimilarity], result of:
           0.055397704 = score(doc=3745,freq=3.0), product of:
             0.1043145 = queryWeight, product of:
               1.5302368 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.013895673 = queryNorm
             0.5310643 = fieldWeight in 3745, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.03685783 = weight(abstract_txt:journal in 3745) [ClassicSimilarity], result of:
           0.03685783 = score(doc=3745,freq=1.0), product of:
             0.11465959 = queryWeight, product of:
               1.6043218 = boost
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.013895673 = queryNorm
             0.32145438 = fieldWeight in 3745, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.02227232 = weight(abstract_txt:were in 3745) [ClassicSimilarity], result of:
           0.02227232 = score(doc=3745,freq=1.0), product of:
             0.09716663 = queryWeight, product of:
               1.9066424 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.013895673 = queryNorm
             0.2292178 = fieldWeight in 3745, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.13408826 = weight(abstract_txt:citations in 3745) [ClassicSimilarity], result of:
           0.13408826 = score(doc=3745,freq=6.0), product of:
             0.16427831 = queryWeight, product of:
               2.217409 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.013895673 = queryNorm
             0.8162262 = fieldWeight in 3745, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.10362568 = weight(abstract_txt:impact in 3745) [ClassicSimilarity], result of:
           0.10362568 = score(doc=3745,freq=4.0), product of:
             0.18128374 = queryWeight, product of:
               2.852862 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.013895673 = queryNorm
             0.5716215 = fieldWeight in 3745, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.20871866 = weight(abstract_txt:articles in 3745) [ClassicSimilarity], result of:
           0.20871866 = score(doc=3745,freq=7.0), product of:
             0.26407158 = queryWeight, product of:
               3.975864 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.013895673 = queryNorm
             0.7903867 = fieldWeight in 3745, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.35434175 = weight(abstract_txt:journals in 3745) [ClassicSimilarity], result of:
           0.35434175 = score(doc=3745,freq=7.0), product of:
             0.41789123 = queryWeight, product of:
               5.864806 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.013895673 = queryNorm
             0.84792817 = fieldWeight in 3745, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
       0.36 = coord(9/25)
   

3. Campanario, J.M.: Large increases and decreases in journal impact factors in only one year : the effect of journal self-citations (2011) 0.35

   0.35190246 = sum of:
     0.35190246 = product of:
       1.0996952 = sum of:
         0.06873749 = weight(abstract_txt:2007 in 187) [ClassicSimilarity], result of:
           0.06873749 = score(doc=187,freq=1.0), product of:
             0.115814194 = queryWeight, product of:
               1.3165021 = boost
               6.3308296 = idf(docFreq=214, maxDocs=44421)
               0.013895673 = queryNorm
             0.5935153 = fieldWeight in 187, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.3308296 = idf(docFreq=214, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
         0.09575944 = weight(abstract_txt:journal in 187) [ClassicSimilarity], result of:
           0.09575944 = score(doc=187,freq=3.0), product of:
             0.11465959 = queryWeight, product of:
               1.6043218 = boost
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.013895673 = queryNorm
             0.8351629 = fieldWeight in 187, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
         0.03340848 = weight(abstract_txt:were in 187) [ClassicSimilarity], result of:
           0.03340848 = score(doc=187,freq=1.0), product of:
             0.09716663 = queryWeight, product of:
               1.9066424 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.013895673 = queryNorm
             0.3438267 = fieldWeight in 187, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
         0.1642239 = weight(abstract_txt:citations in 187) [ClassicSimilarity], result of:
           0.1642239 = score(doc=187,freq=4.0), product of:
             0.16427831 = queryWeight, product of:
               2.217409 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.013895673 = queryNorm
             0.9996688 = fieldWeight in 187, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
         0.077719264 = weight(abstract_txt:impact in 187) [ClassicSimilarity], result of:
           0.077719264 = score(doc=187,freq=1.0), product of:
             0.18128374 = queryWeight, product of:
               2.852862 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.013895673 = queryNorm
             0.42871612 = fieldWeight in 187, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
         0.13972844 = weight(abstract_txt:factors in 187) [ClassicSimilarity], result of:
           0.13972844 = score(doc=187,freq=2.0), product of:
             0.21274187 = queryWeight, product of:
               3.0904932 = boost
               4.9538813 = idf(docFreq=851, maxDocs=44421)
               0.013895673 = queryNorm
             0.65679806 = fieldWeight in 187, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9538813 = idf(docFreq=851, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
         0.118332356 = weight(abstract_txt:articles in 187) [ClassicSimilarity], result of:
           0.118332356 = score(doc=187,freq=1.0), product of:
             0.26407158 = queryWeight, product of:
               3.975864 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.013895673 = queryNorm
             0.44810712 = fieldWeight in 187, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
         0.4017858 = weight(abstract_txt:journals in 187) [ClassicSimilarity], result of:
           0.4017858 = score(doc=187,freq=4.0), product of:
             0.41789123 = queryWeight, product of:
               5.864806 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.013895673 = queryNorm
             0.9614602 = fieldWeight in 187, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.09375 = fieldNorm(doc=187)
       0.32 = coord(8/25)
   

4. Vinkler, P.: Characterization of the impact of sets of scientific papers : the Garfield (impact) Factor (2004) 0.32

   0.3211327 = sum of:
     0.3211327 = product of:
       1.0035397 = sum of:
         0.069074534 = weight(abstract_txt:calculated in 3227) [ClassicSimilarity], result of:
           0.069074534 = score(doc=3227,freq=1.0), product of:
             0.1522552 = queryWeight, product of:
               1.5094779 = boost
               7.2588162 = idf(docFreq=84, maxDocs=44421)
               0.013895673 = queryNorm
             0.45367602 = fieldWeight in 3227, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.2588162 = idf(docFreq=84, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
         0.045232035 = weight(abstract_txt:published in 3227) [ClassicSimilarity], result of:
           0.045232035 = score(doc=3227,freq=2.0), product of:
             0.1043145 = queryWeight, product of:
               1.5302368 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.013895673 = queryNorm
             0.43361217 = fieldWeight in 3227, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
         0.07371566 = weight(abstract_txt:journal in 3227) [ClassicSimilarity], result of:
           0.07371566 = score(doc=3227,freq=4.0), product of:
             0.11465959 = queryWeight, product of:
               1.6043218 = boost
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.013895673 = queryNorm
             0.64290875 = fieldWeight in 3227, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
         0.07741588 = weight(abstract_txt:citations in 3227) [ClassicSimilarity], result of:
           0.07741588 = score(doc=3227,freq=2.0), product of:
             0.16427831 = queryWeight, product of:
               2.217409 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.013895673 = queryNorm
             0.47124836 = fieldWeight in 3227, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
         0.089742474 = weight(abstract_txt:impact in 3227) [ClassicSimilarity], result of:
           0.089742474 = score(doc=3227,freq=3.0), product of:
             0.18128374 = queryWeight, product of:
               2.852862 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.013895673 = queryNorm
             0.49503872 = fieldWeight in 3227, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
         0.0931523 = weight(abstract_txt:factors in 3227) [ClassicSimilarity], result of:
           0.0931523 = score(doc=3227,freq=2.0), product of:
             0.21274187 = queryWeight, product of:
               3.0904932 = boost
               4.9538813 = idf(docFreq=851, maxDocs=44421)
               0.013895673 = queryNorm
             0.43786538 = fieldWeight in 3227, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9538813 = idf(docFreq=851, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
         0.17639947 = weight(abstract_txt:articles in 3227) [ClassicSimilarity], result of:
           0.17639947 = score(doc=3227,freq=5.0), product of:
             0.26407158 = queryWeight, product of:
               3.975864 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.013895673 = queryNorm
             0.6679987 = fieldWeight in 3227, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
         0.37880728 = weight(abstract_txt:journals in 3227) [ClassicSimilarity], result of:
           0.37880728 = score(doc=3227,freq=8.0), product of:
             0.41789123 = queryWeight, product of:
               5.864806 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.013895673 = queryNorm
             0.90647334 = fieldWeight in 3227, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=3227)
       0.32 = coord(8/25)
   

5. Heneberg, P.: Parallel worlds of citable documents and others : inflated commissioned opinion articles enhance scientometric indicators (2014) 0.31

   0.31382793 = sum of:
     0.31382793 = product of:
       0.9807123 = sum of:
         0.051533047 = weight(abstract_txt:medicine in 2227) [ClassicSimilarity], result of:
           0.051533047 = score(doc=2227,freq=1.0), product of:
             0.1252422 = queryWeight, product of:
               1.3690397 = boost
               6.5834737 = idf(docFreq=166, maxDocs=44421)
               0.013895673 = queryNorm
             0.4114671 = fieldWeight in 2227, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5834737 = idf(docFreq=166, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
         0.055397704 = weight(abstract_txt:published in 2227) [ClassicSimilarity], result of:
           0.055397704 = score(doc=2227,freq=3.0), product of:
             0.1043145 = queryWeight, product of:
               1.5302368 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.013895673 = queryNorm
             0.5310643 = fieldWeight in 2227, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
         0.03685783 = weight(abstract_txt:journal in 2227) [ClassicSimilarity], result of:
           0.03685783 = score(doc=2227,freq=1.0), product of:
             0.11465959 = queryWeight, product of:
               1.6043218 = boost
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.013895673 = queryNorm
             0.32145438 = fieldWeight in 2227, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.14327 = idf(docFreq=704, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
         0.031497817 = weight(abstract_txt:were in 2227) [ClassicSimilarity], result of:
           0.031497817 = score(doc=2227,freq=2.0), product of:
             0.09716663 = queryWeight, product of:
               1.9066424 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.013895673 = queryNorm
             0.3241629 = fieldWeight in 2227, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
         0.13408826 = weight(abstract_txt:citations in 2227) [ClassicSimilarity], result of:
           0.13408826 = score(doc=2227,freq=6.0), product of:
             0.16427831 = queryWeight, product of:
               2.217409 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.013895673 = queryNorm
             0.8162262 = fieldWeight in 2227, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
         0.05181284 = weight(abstract_txt:impact in 2227) [ClassicSimilarity], result of:
           0.05181284 = score(doc=2227,freq=1.0), product of:
             0.18128374 = queryWeight, product of:
               2.852862 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.013895673 = queryNorm
             0.28581074 = fieldWeight in 2227, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
         0.13663843 = weight(abstract_txt:articles in 2227) [ClassicSimilarity], result of:
           0.13663843 = score(doc=2227,freq=3.0), product of:
             0.26407158 = queryWeight, product of:
               3.975864 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.013895673 = queryNorm
             0.51742953 = fieldWeight in 2227, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
         0.4828864 = weight(abstract_txt:journals in 2227) [ClassicSimilarity], result of:
           0.4828864 = score(doc=2227,freq=13.0), product of:
             0.41789123 = queryWeight, product of:
               5.864806 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.013895673 = queryNorm
             1.1555313 = fieldWeight in 2227, product of:
               3.6055512 = tf(freq=13.0), with freq of:
                 13.0 = termFreq=13.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=2227)
       0.32 = coord(8/25)