Michael Sipser
John P. Ellis
Solomon L. Pollack
Lawrence R. Rabiner
Shahar Mendelson
Klein, Rolf
B. Girling
Acm Special Interest Group for Automata
Avner Friedman
ACM Symposium on Theory of Computing (1997 : El Paso, Texas).
Arto Salomaa
FCT '93 (1993 Szeged, Hungary)
M. Fontet
ACM Symposium on Theory of Computing (12th 1980 Los Angeles, Calif.)
ESA '97 (1999 Prague, Czech Republic)
Symposium on Theoretical Aspects of Computer Science (17th 2000 Lille, France)
Bernard A. Galler
International Joint Conference on Theory and Practice of Software Development (4th 1991 Brighton, England)
Catuscia Palamidessi
Symposium in Applied Mathematics (1973 University of Montana, Missoula)