Ghahremanlou, Davoud, and Wieslaw Kubiak. “Impact of Government Policies on Sustainable Petroleum Supply Chain (SPSC): A Case Study – Part II (The State of Nebraska)”. Decision Making in Manufacturing and Services 14, no. 1 (December 30, 2020). Accessed April 28, 2024. https://journals.agh.edu.pl/dmms/article/view/3649.