Ferenczy, F. “Zamečanie K Teoreme of Polnote Sistemy konečnyh Avtomatov”. Acta Cybernetica 1, no. 3 (January 1, 1972): 153-155. Accessed November 22, 2024. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3083.