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Crowe, M.; Beeby, R.; Gammack, J.: Constructing systems and information : a process view (1996)
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Fidel, R.: Database design for information retrieval : a conceptual approach (1987)
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Hirschheim, R.; Klein, H.Z.; Lyytinen, K.: Information systems development and data modelling : conceptual and philosophical foundations (1995)
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Ignizio, J.P.: ¬An Introduction to expert systems : the development and implementation of rule-based expert systems (1991)
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