For citations:

Kolosov V.A., Zotova M.V., Sebentsov A.B. BARRIER FUNCTION OF RUSSIAN BORDERS. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2016;(5):8-20. (In Russ.) https://doi.org/10.15356/0373-2444-2016-5-8-20