Sawicka-Miszewska, D., Sawicki, L., & Sawicki, R. (2017). Tadeusz Sawicki (1912–1939) – an aviator killed in the region of Szadek. Recollections of the family. Biuletyn Szadkowski, 17, 135–148. https://doi.org/10.18778/1643-0700.17.09