Patricia Baggett, Andrzej Ehrenfeucht. Textual and visual access to a computer by people who know nothing about it. In Deborah A. Ainsworth, editor, Proceedings of the 6th Annual International Conference on Systems Documentation, SIGDOC 1986, Ann Arbor, MI, USA, October 16-19, 1988. pages 121-134, ACM, 1988. [doi]
Abstract is missing.