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Pejtersen, A.M.: Design of a classification scheme for fiction based on an analysis of actual user-librarian communication, and use of the scheme for control of librarians' search strategies (1980)
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Claassen, W.; Cornelius, P.; Ehrmann, D.; Tanghe, P.: Fachwissen Online-Recherche : Suchstrategien in Online-Datenbanken (1988)
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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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Jahoda, G.; Braunagel, J.S.: ¬The librarian and reference queries : a systematic approach (1980)
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