1 literature reference for Vipera bulgardaghica NILSON 1985:

Author: Nilson G; Andren C
Year: 1985
Title: Systematics of the Vipera xanthina complex (Reptilia: Viperidae). 3. Taxonomic status of the Bulgar Dagh viper in south Turkey.
Source: Journal of Herpetology 19 (2): 276-283