Jalal, Ahmed Q., Hussein A. Essa Allalaq, Alexey I. Shinkevich, Svetlana S. Kudryavtseva, and Irina G. Ershova. “Assessment of the Efficiency of Energy and Resource-Saving Technologies in Open Innovation and Production Systems”. International Journal of Energy Economics and Policy 9, no. 5 (July 23, 2019): 289–296. Accessed April 26, 2024. https://www.econjournals.com/index.php/ijeep/article/view/8253.