Bajec, Patricija, Danijela Tuljak-Suban, and Ivona Bajor. “A Warehouse Social and Environmental Performance Metrics Framework”. Promet - Traffic&Transportation 32, no. 4 (July 9, 2020): 513–526. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2877.