NIZIOŁ, Aleksandra. Diversity of Socio-Economic Development of Counties in Lubelskie Voivodship. Regional Barometer. Analyses & Prognoses, [S. l.], n. 3 (13), p. 77–84, 2008. DOI: 10.56583/br.1473. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1473. Acesso em: 5 dec. 2025.