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Lapp, E.: Nachweis des deutschen Schrifttums des 18. und 19. Jahrhunderts in Bibliotheken der Bundesrepublik Deutschland und West-Berlins (1988)
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Lapp, E.; Schwartz, D.: Konzept und prototypische Realisierung einer elektronischen Bibliothek für Ingenieure : Teil 2 (2000)
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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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Lapp, E.: Katalogsituation der Altbestände (1501-1850) in Bibliotheken der Bundesrepublik Deutschland einschließlich Berlin (West) : eine Studie im Auftrag der Deutschen Forschungsgemeinschaft (1989)
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