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Dewdney, P.; Michell, G.: Asking 'why' questions in the reference interview : a theoretical justification (1997)
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Deardorff, A.; Masterton, K.; Roberts, K.; Kilicoglu, H.; Demner-Fushman, D.: ¬A protocol-driven approach to automatically finding authoritative answers to consumer health questions in online resources (2017)
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