Szczygielski K. Ethnic Picture of Poland after the National Census of Population and Housing 2011. Ethnic Differentiation as a Potential Factor of Regional Growth. br [Internet]. 2013 Dec. 2 [cited 2024 Nov. 22];11(3):33-45. Available from: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1112