HEFFNER, Krystian; GIBAS, Piotr. Level of Metropolisation in Chosen Urban Centers in Poland : Meaning of Scales and Variables. Acta Universitatis Lodziensis. Folia Oeconomica, Poland, n. 293, p. 11–26, 2013. DOI: 10.18778/0208-6018.293.02. Disponível em: https://www.czasopisma.uni.lodz.pl/foe/article/view/26906. Acesso em: 30 may. 2026.