Hess, Mirando, Svjetlana Hess, and Serđo Kos. “On Transportation System With Deterministic Service Time”. Promet - Traffic&Transportation 20, no. 5 (September 25, 2008): 283–290. Accessed August 27, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2282.