Wąsowicz , J. “Report on the Pastoral and Social Ministry of Fr. Francis Szczygłowski (1876–1941), Salesian Benefactor in Aleksandrów Kujawski and Ląd on the Warta. Source Edition”. Seminare. Learned Investigations, vol. 34, Dec. 2022, pp. 325–332, doi:10.21852/sem.2013.34.22.