https://www.scirp.org/reference/ReferencesPapers?ReferenceID=2171190
Jishkariani, J., Tsikarishvili, K., Kobulashvili, T. Jamrishvili, A., Kapanadze, V. (1986) The...
Jishkariani, J., Tsikarishvili, K., Kobulashvili, T. Jamrishvili, A., Kapanadze, V. (1986) The Latest Research Results of Tskaltubo Cave System. Reports Theses...