John E. Hopcroft
V. J. Rayward-Smith
J. G. Turner
Seppo Sippu
Grzegorz Rozenberg
Steve Kimbrough
International Colloquium on Automata, Languages, and Programming (7th 1980 Noordwijkerhout)
Gerhard Goos
International Colloquium on Automata, Languages and Programming (5th 1978 Udine)
Colloquium on Automata, Languages and Programming (6th. 1979 Graz, Austria)