共 18 条
- [2] Boasson L., 1973, Acta Informatica, V2, P180, DOI 10.1007/BF00264030
- [6] Ginsburg S., 1971, Journal of Computer and System Sciences, V5, P365, DOI 10.1016/S0022-0000(71)80024-7
- [7] Ginsburg S., 1973, Journal of Computer and System Sciences, V7, P1, DOI 10.1016/S0022-0000(73)80047-9
- [8] GINSBURG S, 1966, P AM MATH SOC, V17, P1043
- [9] Greibach S., 1970, J COMPUT SYST SCI, V4, P308