MAZURKIEWICZ, Maciej Jan. The state of research on the history of social insurance law with in the Second Polish Republic (1918–1939). Studia Iuridica Toruniensia. Online. 26 February 2016. Vol. 17, pp. 145-162. [Accessed 21 July 2024]. DOI 10.12775/SIT.2015.022.