Jauntirane, Anastasija, and Ērika Teirumnieka. “JSC OLAINFARM EFFECTS OF WASTEWATER ON THE ENVIRONMENT”. HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, no. 22 (April 25, 2018): 117–122. Accessed May 3, 2024. https://journals.ru.lv/index.php/HET/article/view/3626.