Kozłowski, Włodzimierz. “Cavalry Brigade Podlaska and Suwalska in Fight to Break Through German Encirclement in September 1939”. Acta Universitatis Lodziensis. Folia Historica, no. 19 (January 1, 1984): 85–104. Accessed December 7, 2025. https://czasopisma.uni.lodz.pl/historica/article/view/17912.