Smetannikov A, Kosolapova A, Mitrofanova E, Bachurin B, Onosov D, Fomin D, et al. Test results of waste processing potassium-magnesium ores, as a fertilizer of prolonged action. ВПФИЦ [Internet]. 2018 Jul. 25 [cited 2026 May 14];(4):58-63. Available from: https://journal.permsc.ru/index.php/pscj/article/view/PRCJ2017n4a9