Kobolev, V. P., P. A. Burtnyi, S. F. Mikhailuk, N. I. Novik, S. V. Pinchuk, and S. S. Chulkov. “Quot”;. Geofizicheskiy Zhurnal 33, no. 5 (October 1, 2011): 90–99. Accessed October 7, 2022. http://journals.uran.ua/geofizicheskiy/article/view/116861.