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Radev, D.; Fan, W.; Qu, H.; Wu, H.; Grewal, A.: Probabilistic question answering on the Web (2005)
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- Journal of the American Society for Information Science and Technology. 56(2005) no.6, S.571-583
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Lin, J.; Katz, B.: Building a reusable test collection for question answering (2006)
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- Journal of the American Society for Information Science and Technology. 57(2006) no.7, S.851-861