ANDREASIK, Jan. [Szanowni Państwo]. Regional Barometer. Analyses & Prognoses, [S. l.], n. 2 (8), p. 1, 2007. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1628. Acesso em: 14 may. 2025.