PIETRZAK, Michał Bernard; WILK, Justyna; MATUSIK, Stanisław. Analysis of Internal Migration in Poland with Application of the Gravity Model. Acta Universitatis Lodziensis. Folia Oeconomica, [S. l.], n. 293, p. 27–37, 2013. DOI: 10.18778/0208-6018.293.03. Disponível em: https://czasopisma.uni.lodz.pl/foe/article/view/26910. Acesso em: 6 dec. 2025.