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Feasibility Study for UDTILL Pilot Project - Working Draft. National Lihrary of Canada, April 24, 1989.
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White, J., "X.400 Standardized as Interconnector of E-mail." Unix World, January 1989, pp. 99-100.
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"X.400 Riding the Tidal Wave into Information Technology Market " OSI Product & Equipment News, March 2, 1989, pp. 6-7.
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Taylor, Grenville J. "Bringing OSI and EDITogether". In International Open Systems 88: Proceedings of the Conference held in London, 1988. London: Online Publications , 1988, pp. 355-366.
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EDI-X.400 Merger Beginning to Move in CCITT". EMMS, December 1, 1988. pp. 1-7.
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"AT& Tto Unwrap EDI Network Interface Specs." Computer World, April 24, 1989, p. 58.
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"The TEDIS Program - A Progress Report - April 1989. Esprit Information Exchange System - iesnews. April 1989, pp. 6-8.
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