Čapkovič, František. “Petri Nets at Modelling and Control of Discrete-Event Systems With Nondeterminism - Part 2”. Computing and Informatics 38, no. 3 (August 1, 2019): 728–764. Accessed November 23, 2024. http://147.213.75.17/ojs/index.php/cai/article/view/2019_3_728.