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Abrera, J.B.: Traditional classification : characteristics, uses and problems (1974)
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Friis-Hansen, J.B.: Library-classification systems in Denmark (1976)
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Whitlatch, J.B.: Unobtrusive studies and the quality of academic library reference services (1989)
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Bobrow, D.G.; Fraser, J.B.; Quillian, M.R.: Automated language processing (1967)
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