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Lowery, J.: Online bibliographic services from The British Library's National Bibliographic Service (1997)
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Welcome to the MELVYL system web interface (1997)
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Britain's National Bibliographic Service (1994)
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Buntrock, R.E.: MEDLINE on the Internet : "healthier" than before? (1997)
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Aghemo, A.: ¬Il reference librarian nel contesto multimediale (1998)
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