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Wiil, U.K.. (1992). [IEEE Proceedings of the Twenty-Fifth Hawaii International Conference on System Sciences - Kauai, HI, USA (1992.01.7-1992.01.10)] Proceedings of the Twenty-Fifth Hawaii International Conference on System Sciences - Issues in the design of EHTS: a multiuser hypertext system for collaboration. , (), 629–639 vol.2. doi:10.1109/HICSS.1992.183314 
10.1109/HICSS.1992.183314