Robert McNaughton
Arthur W. Burks
David J. Comer
Taylor L. Booth
Juris Hartmanis
Irving S. Reed
Walter S. Brainerd
Dirk Siefkes
Ron Sun
Kalyan S. Perumalla
Samuel Eilenberg
S. I. Baranov
Jean Kuntzmann
International Symposium on the Theory of Machines and Computations (1971 Haifa, Israel)
Jacques Loeckx
International Symposium on Relay Systems Theory and Finite Automata Moscow 1962.
Arto Salomaa
Erwin Engeler
Tomasz Skrzypkowski