Teirumnieks, E., and Ē. Abricka. “Analyze of Leachate Composition in the Dumpsites of East-Latgale Region”. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 26, 2006): 276–283. Accessed April 16, 2025. https://journals23.rta.lv/index.php/ETR/article/view/2018.