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Prasad, A.R.D.; Kar, B.B.: Parsing Boolean search expression using definite clause grammars (1994)
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Tomasselli, G.: Erfahrungen beim Einsatz eines PROLOG-Programms auf Mikrorechnern : zur Erfassung und Prüfung bibliographischer Daten; PROLOG als Mittel zur Beschreibung bibliographischen Wissens (1989)
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Karisiddappa, C.R.; Prasad, A.R.D.: Declarative programming and thesaurus construction (1993)
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Bhatia, S.K.; Deogun, J.S.; Raghavan, V.V.: Conceptual query formulation and retrieval (1995)
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