Vipera nikolskii is spread in Central Ukraine and southwestern Russia.[1][3] Mallow et al. (2003) mention that the distribution is concentrated in the forest-steppe zone of the Kharkiv region in Ukraine.[2]
Also, Vipera nikolskii was recently found in the eastern and southern part of Romania and Basarabia (Republic of Moldova) by Zinenko et al. (2010) and Strugariu & Zamfirescu (2008).It recently occurred on a ridge in the Low Tatras, Slovakia
^ abcdeMcDiarmid RW, Campbell JA, Touré TA (1999). Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN1-893777-00-6 (series). ISBN1-893777-01-4 (volume).
^ abcMallow D, Ludwig D, Nilson G. 2003. True Vipers: Natural History and Toxinology of Old World Vipers. Malabar, Florida: Krieger Publishing Company. 359 pp. ISBN0-89464-877-2.
^Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN978-1-4214-0135-5. (Vipera nikolskii, p. 190).
Golay P, Smith HM, Broadley DG, Dixon JR, McCarthy CJ, Rage J-C, Schätti B, Toriba M (1993). Endoglyphs and Other Major Venomous Snakes of the World. A Checklist. Geneva: Azemiops. 478 pp.
Strugariu A, Zamfirescu SR, Nicoară A, Gherghel I, Sas I, Pușcașu CM, Bugeac T (2008). "Preliminary data regarding the distribution of the herpetofauna in Iași County (Romania)". North-Western Journal of Zoology4 (Supplement 1): S1-S23.
Vedmederja VI, Grubant VN, Rudajewa AV (1986). ["On the taxonomy of the three viper species in the Vipera kaznakowi complex"]. In: Ananjeva N, Borkin L (editors). "Systematics and Ecology of Amphibians and Reptiles". Proceedings of the Zoological Institute, Leningrad157: 55-61. (In Russian).
Zinenko, Oleksandr; Țurcanu, Vladimir; Strugariu, Alexandru (2010). "Distribution and morphological variation of Vipera berus nikolskii Vedmederja, Grubant et Rudaeva, 1986 in Western Ukraine, The Republic of Moldova and Romania". Amphibia - Reptilia31 (1): 51-67.