N. V. Zayakina, М. V. Kudrin, V. Yu. Fridovsky. "THERMAL DEHYDRATION OF NATURAL HYDROUS FERRIC SULFATE Fe(SO4)(OH)?2H2O." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th SGEM International Multidisciplinary Scientific GeoConference Proceedings 2020, Science and Technologies in Geology, Exploration And Mining, 2020, pp. 863-870. https://doi.org/10.5593/sgem2020/1.1/s04.105