Koprowski, Adam, and Johannes Waldmann. “Max/Plus Tree Automata for Termination of Term Rewriting”. Acta Cybernetica 19, no. 2 (January 1, 2009): 357-392. Accessed April 25, 2024. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3772.