On Commutative Asynchronous Automata. - Balázs Imreh; Masami Ito; Antal Pukler (Words, Languages & Combinatorics, 2000)

On commutative asynchronous nondeterministic automata. - Balázs Imreh; Masami Ito; Antal Pukler (Acta Cybern., 2000)