Trubaev, Pavel A., and Pavel N. Tarasyuk. “Evaluation of Energy-Saving Projects for Generation of Heat and Heat Supply by Prime Cost Forecasting Method”. International Journal of Energy Economics and Policy 7, no. 5 (November 1, 2017): 201–208. Accessed January 5, 2025. https://econjournals.com/index.php/ijeep/article/view/5619.