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Wormell, I.: SAP: a new way to produce subject description of books (1981)
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Wormell, I.: Factual data retrieval according to SAP-technique (1983)
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Wormell, I.: Subject access project - SAP : Improved subject retrieval for monographic publications (1985)
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Wormell, I.: Factual data retrieval according to SAP technique (1983)
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Wormell, I.: Subject access redefinied : how new technology changes the conception of subject representation (1994)
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Hancock-Beaulieu, M.: Methods for evaluating OPACs (1990)
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Adler, P.S.: ¬An introduction : where are we heading? (1997)
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Baeza-Yates, R.; Navarro, G.: Block addressing indices for approximate text retrieval (2000)
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Tijssen, R.J.W.; Wijk, E. van: ¬The global science base of information and communication technologies : bibliometric analysis of ICT research papers (1998)
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Khurshid, Z.: Analytical cataloging of full-text journal databases at a Middle East university (2001)
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