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Clements, J.; Nicholls, P.: ¬A comparative survey of multimedia CD-ROM encyclopedias (1995)
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Pack, T.: Grolier Multimedia Encyclopedia : now in two versions (1998)
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Jascó, P.: Multimedia strategies in online encyclopedias part 1 : a look at Grolier and Compton's in their latest online incarnations (1998)
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Pack, T.: Digital circles of knowledge (1995)
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Burg, B.; Kautzman, A.M.: Virtual knowledge : the best buys in 1998 CD-ROM encyclopedias (1998)
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