Pomianek I, Chrzanowska M. A spatial comparison of semi-urban and rural gminas in Poland in terms of their level of socio-economic development using Hellwig’s method. BGSS [Internet]. 2016 Jun. 30 [cited 2024 Nov. 4];(33):103-17. Available from: https://apcz.umk.pl/BGSS/article/view/bog-2016-0028