Ivaković, Čedomir, Ratko Stanković, and Mario Šafran. “Optimisation of Distribution Network Applying Logistic Outsourcing”. Promet - Traffic&Transportation 22, no. 2 (January 27, 2012): 87-94. Accessed August 30, 2025. http://traffic.fpz.hr/index.php/PROMTT/article/view/167.