供引用:

Tibilov D.P., Domakhina Yu.A. Development of potential of potassium ore mining, sulfate fertilizer production in Kaliningrad region and selling SOP (potassium sulfate) in the world market. Russian Journal of Industrial Economics. 2020;13(2):225-232. (In Russ.) https://doi.org/10.17073/2072-1633-2020-2-225-232