History of Livingston Island. In: Bulgarian Antarctic Research: A Synthesis. Eds. C. Pimpirev and N. Chipev. Sofia: St. Kliment Ohridski University Press, 2015. pp. 17–28. D. Gildea. Mountaineering in Antarctica: complete guide: Travel guide. Primento and Editions Nevicata, 2015. External links Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission. (details in Bulgarian, basic data in English) Tangra 2004/05 Expedition Expedition Omega Livingston 2003. The Omega Foundation, USA, 2003. Antarctic Mountains: Climbing in Antarctica Tangra Mountains. Copernix satellite image Bulgaria and the Antarctic Mountain ranges of Antarctica