Gyapay, Szilvia, and András Pataricza. “Optimal Trajectory Generation for Petri Nets”. Acta Cybernetica 17, no. 2 (January 1, 2005): 225–245. Accessed April 1, 2025. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3665.