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Dewdney, P.; Ross, C.S.: Flying a light aircraft : reference service evaluation from a user's viewpoint (1994)
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Dewdney, P.; Michell, G.: Oranges and peaches : understanding communication accidents in the reference interview (1996)
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Dewdney, P.; Michell, G.: Asking 'why' questions in the reference interview : a theoretical justification (1997)
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