ILIEVA, M.; ILIEV, I. Bulgarian Urban Settlements in the Early 21st Century. Bulletin of Geography. Socio-economic Series, [S. l.], n. 13, p. 113–126, 2010. DOI: 10.1515/v10089-010-0009-y. Disponível em: https://apcz.umk.pl/BGSS/article/view/v10089-010-0009-y. Acesso em: 18 jul. 2024.