Template:Coutsis,JG, 2014
- Coutsis, J.G. 2014. Pontia beckerii from Balkhash Lake, Kazakhstan, new to the Palaearctic, and misidentified larva and pupa of Pieris krueperi from the Tarbagatai Range, Kazakhstan (Lepidoptera: Pieridae). Phegea 42(2): 39–41. PDF