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Wildemuth, B.M.; O'Neill, A.L.: ¬The '¬known' in known-item searches : an empirical support for user-centered design (1995)
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Wildemuth, B.M.; Jacob, E.K.; Fullington, A.;; Bliek, R. de; Friedman, C.P.: ¬A detailed analysis of end-user search behaviours (1991)
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