Skromulis, Andris, Ivars Matisovs, and Gotfrīds Noviks. “Complex Evaluation Of Air Quality In Rezekne”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (August 5, 2015): 160–168. Accessed November 23, 2024. https://journals.ru.lv/index.php/ETR/article/view/920.