Sennikov, A. N. (2013). A revision of Cousinia sections Alpinae (syn. Carduncellus), Subappendiculatae and Tianschanicae (Asteraceae) in the Kirghizian Tian-Shan and the neighbouring territories. Phytotaxa, 5(1), 1–30. https://doi.org/10.11646/phytotaxa.5.1.1