Гнидо СВ. COMBAT OPERATIONS OF THE 23RD INFANTRY DIVISION OF THE 9TH ARMY OF THE SOUTH-EASTERN FRONT OF THE RED ARMY IN THE AREA OF THE KHOPER RIVER IN EARLY NOVEMBER 1919. Siberia Humanitarian. 2023;1(2):37-45. doi:10.32324/2949-1568-2023-2-37-45