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  1. Hattery, M.: Videotex in the US in 1991 (1991) 7.75 
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  2. Case, D.O.: ¬The social shaping of videotex : how information services for the public have evolved (1994) 7.75 
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  3. Black, G.: Videotex at the crossroads (1993) 7.75 
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