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Kaya, Ugur and Tuniyev, Boris and Ananjeva, Natalia and Orlov, Nikolai and Papenfuss, Theodore and Kuzmin, Sergius and Tarkhnishvili, David and Tuniyev, Sako and Sparreboom, Max and Ugurtas, Ismail and Anderson, Steven (2009) Mertensiella caucasica. IUCN, http://www.iucnredlist.org/.
Arntzen, J W and Papenfuss, Theodore and Kuzmin, Sergius and Tarkhnishvili, David and Ishchenko, Vladimir and Tuniyev, Boris and Sparreboom, Max and Rastegar-Pouyani, Nasrullah and Ugurtas, Ismail and Anderson, Steven and Babik, Wiesiek and Miaud, Claude and Crnobrnja Isailovic, Jelka (2009) Triturus karelinii. IUCN, IUCN Red List of Threatened Species.