Lūse, Gunda, and Ērika Teirumnieka. “SMALL HYDROELECTRIC POWER STATION OPERATIONAL EVALUTION OF REZEKNES WASTEWATER TREATMENT PLANTS”. HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, no. 20 (April 20, 2016): 299–302. Accessed November 30, 2024. https://journals.rta.lv/index.php/HET/article/view/3512.