Bulatsen, V. G., L. Y. Khalyavina, and T. E. Borisyuk. “Characteristics of the Gravity Field of Predictive Oil-Gas Areas in the DDD Region According to Satellite Model EGM08 and Gravity Measurements at the Beginning of the XX Century”. Geofizicheskiy Zhurnal, vol. 41, no. 1, Mar. 2019, pp. 95-107, doi:10.24028/gzh.0203-3100.v41i1.2019.158866.