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Pejtersen, A.M.: ¬The Book House : Modelling user's needs and search strategies as a basis for system design (1989)
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Goodstein, L.P.; Pejtersen, A.M.: ¬The Book House : System functionality and evaluation (1989)
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Pejtersen, A.M.: Interfaces based on associative semantics for browsing in information retrieval (1990)
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