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Braaksma, B.; Drewes, K.; Siemens, G.; Tittenberger, P.: Building a virtual learning commons : what do YOU want to do? (2007)
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Leach, B.: Computer-based CD-ROM tutorials : providing effective on-demand instruction (1993)
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Cherry, J.M.; Yuan, W.; Clinton, M.: Evaluating the effectiveness of a concept-based computer tutorial for OPAC users (1994)
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Cherry, J.M.; Clinton, M.: ¬An experimental investigation of two types of instruction for OPAC users (1991)
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Stewart, A.; Tait, M.: CALAIS Database Explorer : coping with bibliographic database overload (1997)
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