Kukri snakes Oligodon Fitzinger, 1826 of the Western Palearctic with the resurrection of Contia transcaspica Nikolsky, 1902 (Reptilia, Squamata, Colubridae)
Böhm, Monika, Collen, Ben, Baillie, Jonathan E. M., Bowles, Philip, Chanson, Janice, Cox, Neil, Hammerson, Geoffrey, Hoffmann, Michael, Livingstone, Suzanne R., Ram, Mala, Rhodin, Anders G. J., Stuart, Simon N., van Dijk, Peter Paul, Young, Bruce E., Afuang, Leticia E., Aghasyan, Aram, García, Andrés, Aguilar, César, Ajtic, Rastko, Akarsu, Ferdi, Alencar, Laura R. V., Allison, Allen, Ananjeva, Natalia, Anderson, Steve, Andrén, Claes et al. 2013. "The conservation status of the world's reptiles." Biological Conservation, 157 372–385. https://doi.org/10.1016/j.biocon.2012.07.015.
Hoffmann, Michael, Hilton-Taylor, Craig, Angulo, Ariadne, Böhm, Monika, Brooks, Thomas M., Butchart, Stuart H. M., Carpenter, Kent E., Chanson, Janice, Collen, Ben, Cox, Neil A., Darwall, William R. T., Dulvy, Nicholas K., Harrison, Lucy R., Katariya, Vineet, Pollock, Caroline M., Quader, Suhel, Richman, Nadia I., Rodrigues, Ana S. L., Tognelli, Marcelo F., Vié, Jean-Christophe, Aguiar, John M., Allen, David J., Allen, Gerald R., Amori, Giovanni, Ananjeva, Natalia B. et al. 2010. "The Impact of Conservation on the Status of the World’s Vertebrates." Science, 330, (6010) 1503–1509. https://doi.org/10.1126/science.1194442.