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Lapp, E.; Schwartz, D.: Konzept und prototypische Realisierung einer elektronischen Bibliothek für Ingenieure : Teil 1: Konzeptionierung (1999)
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Lapp, E.: Informationsdienstleistungen und Benutzerschulungen in der elektronischen Bibliothek (1994)
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- ABI-Technik. 14(1994) H.4, S.317-324
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Lapp, E.: Information services and user training in the electronic library (1996)
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- Library management. 17(1996) no.7, S.31-36