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Hakala, J.: Z39.50-1995: information retrieval protocol : an introduction to the standard and it's usage (1996)
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Friedrich, M.; Schimkat, R.-D.; Küchlin, W.: Information retrieval in distributed environments based on context-aware, proactive documents (2002)
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Zia, L.L.: Growing a national learning environments and resources network for science, mathematics, engineering, and technology education : current issues and opportunities for the NSDL program (2001)
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Roszkowski, M.; Lukas, C.: ¬A distributed architecture for resource discovery using metadata (1998)
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Schneider, W.: ¬Ein verteiltes Bibliotheks-Informationssystem auf Basis des Z39.50 Protokolls (1999)
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Zia, L.L.: new projects and a progress report : ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) program (2001)
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Dupuis, P.; Lapointe, J.: Developpement d'un outil documentaire à Hydro-Quebec : le Thesaurus HQ (1997)
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