A. A. Bardin, V.K. Ignatiev, A.A. Nevsorov, A.A. Orlov. "MAPPING OF GEOMAGNETIC VECTOR TO GLOBAL COORDINATE SYSTEM." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining, 2017, pp. 237-244. https://doi.org/10.5593/sgem2017/14/s05.030