HEFFNER, Krystian; SOLGA, Brygida. Small towns as local economic centres in rural areas. Bulletin of Geography. Socio-economic Series, [S. l.], n. 6, p. 77–87, 2006. DOI: 10.1515/2452. Disponível em: https://apcz.umk.pl/BGSS/article/view/2452. Acesso em: 8 jul. 2025.