D. J. van Eden, Jane M. Fritz, S. Latchford. An open-ended research database for learning center activity. In C. Jinshong Hwang, Richard S. Brice, editors, Proceedings of the 19th annual conference on Computer Science, CSC '91, San Antonio, Texas, USA, March 4-7, 1991. pages 515-522, ACM, 1991. [doi]
Abstract is missing.