[1]
A. Gavrilenkov, “The system of concentration camps in the cities of the Smolensk province during the Soviet-Polish war of 1919–1921”, in City and War, vol. 4, T. Grabarczyk and M. Pogońska-Pol, Eds. Poland: Lodz University Press, 2021, pp. 219–232. doi: 10.18778/8220-617-3.12.