Hantos, Zoltán, and István Madarász. “A Man-Machine Principle Applied to Human Behavioural Tests”. Acta Cybernetica 2, no. 2 (January 1, 1973): 147–156. Accessed April 19, 2025. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3110.