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McMath, C.F.; Tamaru, R.S.; Rada, R.: ¬A graphical thesaurus-based information retrieval system (1989)
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- International journal of man-machine studies. 31(1989), S.121-147
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Rada, R.: Connecting and evaluating thesauri : issues and cases (1987)
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- Source
- International classification. 14(1987), S.63-69