1. A. V. Anisimov, ?Formal grammars taking into account external terminal contexts,? Kibernetika, No. 3, 81?88 (1974).
2. A. V. Anisimov, ?On the control apparatus in pasers,? Kibernetika, No. 6, 57?59 (1974).
3. V. M. Glushkov and A. A. Letichevskii, ?Theory of discrete transducers,? in: Selected Questions of Algebra and Logic [in Russian], Novosibirsk (1973).
4. A. P. Ershov, ?Present state of the theory of program schemes,? in: Problems of Cybernetics [in Russian], Vol. 27, Moscow (1973).
5. A. P. Ershov, ?On Yanov operator schemes,? in: Problems of Cybernetics [in Russian], Vol. 20, Nauka, Moscow (1967).