Powell, Robert. “Amphibian Biology. Volume 11: Status of Conservation and Decline of Amphibians: Eastern Hemisphere. Part 4: Southern Europe and Turkey Edited by Harold Heatwole and John W. Wilkinson”. Reptiles & Amphibians, vol. 22, no. 2, June 2015, pp. 93-94, https://doi.org/10.17161/randa.v22i2.14056.