Karklina, Katrina, Dzintra Slisane, Francesko Romagnoli, and Dagnija Blumberga. “Social Life Cycle Assessment of Biomethane Production and Distribution in Latvia”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June 17, 2015): 128–132. Accessed May 17, 2024. https://journals.rta.lv/index.php/ETR/article/view/628.