J. Michael McGrew, Mohd Mustaffa, Vincent Pedraza, John Raab. CATSY (abstract): an electronic alternative to the chalkboard. In Lawrence A. Jehn, Larry A. Crum, editors, Proceedings of the 14th ACM Annual Conference on Computer Science, Cincinnati, Ohio, USA, 1986. pages 514, ACM, 1986. [doi]
Abstract is missing.