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- authors%3a%22Weber%2c S.%22 2
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Vakkari, P.; Huuskonen, S.: Search effort degrades search output but improves task outcome (2012)
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- Journal of the American Society for Information Science and Technology. 63(2012) no.4, S.657-670
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Vakkari, P.; Sormunen, E.: ¬The influence of relevance levels an the effectiveness of interactive information retrieval (2004)
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- Journal of the American Society for Information Science and Technology. 55(2004) no.11, S.963-969