- kids, specware, planware
- ACM Transactions on Programming Languages and Systems 2(1):90--121 (1980)
- Formal Methods at the Crossroads: From Panacea to Foundational Support, volume 2757 of LNCS, page 267--286. (2003)
- IEEE Transactions on Software Engineering 2(3):141--153 (1976)
- Implementation of Functional Languages IFL'02, volume 2670 of LNCS, Springer, (2003)
- Encyclopedia of Artificial Intelligence, John Wiley \& Sons, Inc., New York, NY, USA, Second edition, (1992)
- Journal of Symbolic Compututation 1(2):119--142 (1985)
- Automated Software Engineering 8(2):167--193 (2001)
- Journal of Systems and Software 40(3):275--296 (1998)
- Automated Software Engineering 8(2):131--137 (2001)
- Journal of the ACM 24(1):44--67 (1977)
- KES.U.01.3.. Kestrel Institute, (2001)


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