M. Ene, G. Osaci-Costache, and Tîrlӑ L., “The caving-ins at Ocnele Mari in the Vâlcea Subcarpathians, Romania”, Geog. Fis. Dinam. Quat., vol. 32, no. 1, pp. 67–72, Jun. 2009, Accessed: Mar. 28, 2026. [Online]. Available: https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/284