For citations:

Zayats D.V., Zotova M.V., Turov N.L., Klyuchnikov M.I. CRISIS OF RUSSIAN-UKRAINIAN RELATIONS: CONSEQUENCES FOR CROSS-BORDER COOPERATION IN BELGOROD OBLAST. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2017;(5):42-56. (In Russ.) https://doi.org/10.7868/S0373244417050048