KOWALCZYK, Barbara; WALCZYK, Konrad. 29. Konferencja Naukowa CIRET w Santiago De Chile. Regional Barometer. Analyses & Prognoses, [S. l.], n. 1 (15), p. 105–106, 2009. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1426. Acesso em: 16 jul. 2025.