Fallahnejad, Mostafa, Lukas Kranzl, and Marcus Hummel. “District Heating Distribution Grid Costs: A Comparison of Two Approaches”. International Journal of Sustainable Energy Planning and Management 34 (May 25, 2022): 79–90. Accessed August 14, 2022. https://journals.aau.dk/index.php/sepm/article/view/7013.