K. Mebert, B. Göçmen, M. Karış, N. İğci, and S. Ursenbacher, “The Valley of Four Viper Species and a Highland of Dwarfs: Fieldwork on Threatened Vipers in Northeastern Turkey”, RandA, vol. 23, no. 1, pp. 1–9, Apr. 2016, doi: 10.17161/randa.v23i1.14084.