Issue No.11 - November (1979 vol.12)
W. Pferd , Bell Telephone Laboratories
Interactive graphic displays of layouts or design plans, already in widespread use as design aids, can be even more effective when used in conjunction with teleconferencing.
W. Pferd, F.X. Prendergast, "Special Feature: Interactive Graphics Teleconferencing", Computer, vol.12, no. 11, pp. 62-72, November 1979, doi:10.1109/MC.1979.1658539