For citations:

Korzhenevskiy K.B. CLARIFICATION OF THE WESTERN BORDER OF THE SIBERIAN TERRITORY IN THE MID-1920S, ON THE EXAMPLE OF THE TRANSITION OF THE BORDER VILLAGES OF BOYARKI AND TSVETKOVO TO THE ISHIM DISTRICT. Severny region: nauka, obrazovanie, kultura. 2021;(2 (48)):34-37. (In Russ.) https://doi.org/10.34822/2312-377X-2021-2-34-37