Literature – 8 June 20149 June 2016 Direct modeling of queuing systems and networks. Yury I. Ryzhikov, Vyacheslav A. Zelentsov, Semyon A. Potryasaev. Direct modeling of queuing systems and networks. – Proceedings of the Int. Conf. on Harbor Maritime and Multimodal Logistics M&S, 2014. – P. 112 – 116. This article was tagged Potryasaev, Ryzhikov, Zelentsov.