1. Ira P. Goldstein and Daniel B. Bobrow, “Descriptions for a Programming Environment,” Proceedings of the 1st Annual Conference of the National Association on Artificial Inteligence, pp. 187–194, Stanford, CA (Aug 1980).
2. Maria H. Penedo and Don E. Stuckle, “PMDB — A Project Master Database for Software Engineering Environments,” Proceedings ICSE, pp. 150–157 (1985).
3. Robert N. Britcher and James J. Craig, “Using Modern Design Practices to Upgrade Aging Software Systems,” IEEE Software, pp. 16–24 (May 1986).
4. M. J. Rochkind, “The Source Code Control System,” IEEE Transactions on Software Engineering, 1, 4, pp. 364–370 (Dec 1975).
5. Walter F. Tichy, “RCS: A System for Version Control,” SP&E, 15 (1985).