Waingertner, Przemysław. “Killed Step-by-Step – Brought Back to Memory. On a Side Note of General Józef Olszyna-Wilczyński’s Biography by Agnieszka Jędrzejewska”. Przegląd Nauk Historycznych/Review of Historical Sciences 18, no. 2 (October 30, 2019): 263–271. Accessed December 6, 2025. https://www.czasopisma.uni.lodz.pl/pnh/article/view/5298.