Sugak, V.G., O. A. Ovchinkin, Yu. S. Silayev, and A. V. Sugak. “Geo-Radar Method of Revealing Water-Saturated Ground Layers With Evaluation of Their Three-Dimensional Humidity”. Geofizicheskiy Zhurnal 36, no. 2 (April 1, 2014): 127–137. Accessed July 1, 2022. http://journals.uran.ua/geofizicheskiy/article/view/116126.