- Symposium on Switching and Automata Theory (4)
- IEEE Computer Society. Switching and Automata Theory Committee (2)
- ACM Special Interest Group for Automata and Computability Theory (1)
- IEEE Computer Society. Technical Committee on Mathematical Foundations of Computing (1)
- Institute of Electrical and Electronics Engineers. Computer Group. Switching and Automata Theory Committee (1)
- University of Iowa. Computer Science Dept. (1)
- University of New Orleans (1)