1. Probabilistic automata;Rabin;Information and Control,1963
2. On stochastic languages;Turakainen;Information and Control,1968
3. On languages accepted by probabilistic and time-variant automata;Salomaa,1968
4. Entropy of languages generated by automated or context-free grammars with a single-valued deduction;Kherts;Nauchno-Tekhnicheskaia Informatsia,1968
5. Some aspects of probabilistic automata;Paz;Information and Control,1965