Пономаренко, Л. А., and В. В. Паладюк. “Research Challenges Models of Service Processes in Networks Without Queues”. Problems of Informatization and Control 1, no. 23 (November 4, 2008): 221–226. Accessed June 14, 2026. http://jrnl.kai.edu.ua/index.php/PIU/article/view/9281.