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Dalitz, W.; Grötschel, M.; Lügger, J.; Sperber, W.: Verteiltes Informationssystem für die Mathematik (1995)
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Grötschel, M.; Lügger, J.; Sperber, W.: Wissenschaftliches Publizieren und elektronische Fachinformation im Umbruch : ein Situationsbericht aus der Sicht der Mathematik (1993)
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Grötschel, M.; Lügger, J.; Sperber, W.: Wissenschaftliches Publizieren und elektronische Fachinformation im Umbruch : ein Situationsbericht aus der Sicht der Mathematik (1993)
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Grötschel, M.; Lügger, J.; Sperber, W.: DMV-Projekt "Fachinformation" (1993)
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Sperber, W.; Wegner, B.: Content Analysis in der Mathematik : Erschließung und Retrieval mathematischer Publikationen (2010)
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