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Hawkins, D.T.: Growth trends in the electronic information services market (1993)
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Hawkins, D.T.: Growth trends in the electronic information services market (1994)
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Hawkins, D.T.: Online information retrieval bibliography (1978-)
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Bärmann, U.: Neue CD-ROM Der Deutschen Bibliothek : DNB-CD retro (1995)
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Lioma, C.; Ounis, I.: ¬A syntactically-based query reformulation technique for information retrieval (2008)
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Tuomaala, O.; Järvelin, K.; Vakkari, P.: Evolution of library and information science, 1965-2005 : content analysis of journal articles (2014)
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Göbel, S.; Wegner, B.: ¬Das Zentralblatt als Zugang zur mathematischen Literatur von 1868 bis heute (2004)
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Hartmann, K.: PDS: Retrievalsoftware für die Pressedatenbank (1984)
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