Lanchava, Omar, and Kukuri Tsikarishvili. “FOR 30th ANNIVERSARY 0F TSKALTUBO (PROMETHEUS) KARST CAVE DISCOVERY: Print Version Was Published: Collection of Works., New Series № 6 (83), 2010”. Georgian Scientists, vol. 3, no. 2, June 2021, doi:10.52340/gs.2021.273.