V. Varma and F. M. Anthony, “Range Extension of the Copper-headed Trinket Snake, Coelognathus radiatus (Boie 1827) (Squamata: Colubridae), from Himachal Pradesh, India ”, RandA, vol. 27, no. 2, pp. 312–313, Nov. 2020, doi: 10.17161/randa.v27i2.14460.