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Costers, L.; Koopman, S.: PICA and developments in library networking in the Netherlands (1995)
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Wang, S.; Koopman, R.: Second life for authority records (2015)
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Wang, S.; Koopman, R.: Embed first, then predict (2019)
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Koopman, B.; Zuccon, G.; Bruza, P.; Sitbon, L.; Lawley, M.: Information retrieval as semantic inference : a graph Inference model applied to medical search (2016)
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Honeit, W.: ¬Der Online-Benutzerkatalog im lokalen Bibliothekssystem der Deutschen Bücherei Leipzig (1995)
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Rogalla von Bieberstein, J.A.: Moderne oder historische Musikinstrumente? : ein Katalogisierungsproblem (1997)
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Smit, A.: Cartographic material in the Pica Library Network : system description (1992)
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Bossers, A.: Cooperative library automation and the Pica experience (1989)
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