“THE POSSIBILITY OF USING FERROMAGNETIC SLUDGE COLLECTED DURING PURIFICATION OF WATER FROM SPILLED OIL PRODUCTS”. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 20, 2019): 168–170. Accessed March 11, 2026. https://archive-journals.rtu.lv/etr/article/view/4213.