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Rusch-Feja, D.; Becker, H.J.: Global Info : the German digital libraries project (1999)
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Enderle, W.: En route vers la bibliothèque numerique : les projets en Allemagne (1997)
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Digital libraries in computer science : the MeDoc approach (1998)
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Brown, C.: Physical sciences and mathematics literatures and their users (2009)
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