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Felleman, J.: Symposium on geographic information systems : [Themenheft] (1990)
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Career planning and job searching in the information age : [Themenheft] (1996)
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Electronic imaging and the visual arts 1994 : [Themenheft] (1994)
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Maron, M.E.: Theory and foundation of information retrieval : some introductory remarks (1978)
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Information retrieval on the Web (1996)
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