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Thelwall, M.: Directing students to new information types : a new role for Google in literature searches? (2005)
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- Internet reference services quarterly. 10(2005) nos.3/4
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Vaughan, L.; Thelwall, M.: Search engine coverage bias : evidence and possible causes (2004)
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- Source
- Information processing and management. 40(2004) no.4, S.693-708