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Costers, L.: PICA: Gegenwart und Perspektiven (1993)
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Costers, L.: strategies for the further development of library networks (1994)
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Costers, L.; Gradmann, S.: Bibliotheksverbünde und Endbenutzer : Dienstleistung und Innovation (1998)
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Costers, L.: ¬The electronic library and its organizational management (1994)
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Costers, L.; Koopman, S.: PICA and developments in library networking in the Netherlands (1995)
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Costers, L.; Dekkers, M.: PICA's integrated infrastructure for document ordering and online document access (1996)
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