Balkus M. The Cards of Internal Passports of the Population of Kaunas City of the 1920–1940s as a Source of Genealogy and Local History. BL [Internet]. 2019 Dec. 20 [cited 2024 May 3];6:45-68. Available from: https://www.journals.vu.lt/Bibliotheca-Lituana/article/view/16285