Robert S. Boyer, Bernard Elspas, Karl N. Levitt. SELECT - a formal system for testing and debugging programs by symbolic execution. In Martin L. Shooman, Raymond T. Yeh, editors, Proceedings of the International Conference on Reliable Software 1975, Los Angeles, California, USA, April 21-23, 1975. pages 234-245, ACM, 1975. [doi]
Abstract is missing.