%N 4 %O Bibliogr.: 382. p. %J Acta cybernetica %T Completeness in non-simple and stable modal logics %K SzĂĄmĂtĂĄstechnika, Kibernetika %V 4 %D 1980 %C Szeged %P 377-382 %L acta12298 %A TĂłth K.