Reference
Andreas Bertsch, Martin Hrabe de Angelis, Gerhard K.H. Przemeck (2010): Phylogenetic relationships of the bumblebees Bombus moderatus, B. albocinctus, B. burjaeticus, B. florilegus and B. cryptarum based on mitochondrial DNA markers: a complex of closely related taxa with circumpolar distribution. (Hymenoptera: Apidae: Bombus). – Beiträge zur Entomologie = Contributions to Entomology – 60: 13 - 32.