Sn. Litvinchuk et Lj. Borkin, Intraspecific taxonomy and nomenclature of the Danube crested newt, Triturus dobrogicus, AMPHIB-REPT, 21(4), 2000, pp. 419-430
The Pannonian and Danube Delta populations of Triturus dobrogicus are well
separated morphologically from each other. We recognize two subspecies of t
he Danube crested newt. The nominotypic subspecies inhabits the Danube Delt
a. Triturus dobrogicus macrosomus (Boulenger, 1908), comb, and stat, nov.,
occurs in the remaining pan of the species' range.