Pokalyuk, V. V., A. A. Aronsky, N. V. Shafranskaya, and A. A. Matoshko. “Fracture of Podolia Caves in the Aspect of Rotational and Tectonic Causes of Formation”. Geofizicheskiy Zhurnal, vol. 34, no. 6, Dec. 2012, pp. 101-12, doi:10.24028/gzh.0203-3100.v34i6.2012.116715.