Grad, Paweł. “German Fortifications of Tomaszów Mazowiecki and the Surrounding Area. Types and Kinds of Shelters”. Acta Universitatis Lodziensis. Folia Germanica, no. 15 (December 30, 2020): 45–66. Accessed April 25, 2024. https://czasopisma.uni.lodz.pl/germanica/article/view/11384.