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  1. McGill, M.J.; Huitfeldt, J.: Experimental techniques of information retrieval (1979) 5.75
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  2. Harter, S.P.; Hert, C.A.: Evaluation of information retrieval systems : approaches, issues, and methods (1997) 5.75
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  3. Oppenheim, C.; Morris, A.; McKnight, C.: ¬The evaluation of WWW search engines (2000) 5.75
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