For citations:

Ravkin Yu.S., Bogomolova I.N., Tsybulin S.M. Faunistic Zoning of Northern Eurasia. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2015;(3):29-40. (In Russ.) https://doi.org/10.15356/0373-2444-2015-3-29-40