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Carlton, T.: I want an electronic bookstore! (1993)
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Pack, T.: Digital circles of knowledge (1995)
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Clements, J.; Nicholls, P.: ¬A comparative survey of multimedia CD-ROM encyclopedias (1995)
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Jascó, P.: State-of-the-art multimedia in 1996 : the 'big four' general encyclopedias on CD-ROM (1996)
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Klister, K.: Multimedia encyclopedias take off (1995)
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