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Huisman, F.W.: Gemeenschappelijke onderwerpsontsluiting (GOO) : een samenwerkingsproject in Pica-verband (1992)
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Laan, H. van der: Nieuwe Nederlandse Web-Woelers (1998)
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Oppenheim, C.; Morris, A.; McKnight, C.: ¬The evaluation of WWW search engines (2000)
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Bedathur, S.; Narang, A.: Mind your language : effects of spoken query formulation on retrieval effectiveness (2013)
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Tegenbos, J.; Nieuwenhuysen, P.: My kingdom for an agent? : Evaluation of Autonomy, an intelligent search agent for the Internet (1997)
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