Ádám, András. “On the Complexity of Codes and Pre-Codes Assigned to Finite Moore Automata”. Acta Cybernetica 5, no. 2 (January 1, 1981): 117-133. Accessed April 19, 2024. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3209.