K.G. Karapetian, Natalia Dzhevaga. TECHNOLOGY OF PROCESSING OF APATITES IN THE PRODUCTION OF FUSED PHOSPHATES AS MODERN HIGHLY EFFECTIVE FERTILIZERS. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation, 2017, pp. 939-946. https://doi.org/10.5593/sgem2017/51/s20.122