Dimirovski, Georgi M. “Fuzzy-Petri-Net Reasoning Supervisory Controller and Estimating States of Markov Chain Models”. Computing and Informatics 24, no. 6 (February 6, 2012): 563–576. Accessed April 18, 2025. http://147.213.75.17/ojs/index.php/cai/article/view/400.