Bogoviz, A. V., S. V. Lobova, Y. V. Ragulina, and A. N. Alekseev. “Russia’s Energy Efficiency Policies in the Industry Sector: Critical Perspectives”. International Journal of Energy Economics and Policy, vol. 8, no. 6, Oct. 2018, pp. 48-58, https://www.econjournals.com/index.php/ijeep/article/view/7005.