PETROV, Kamen. Methodological problems before regional development in the conditions of post COVID-19 governance. Journal of Geography, Politics and Society, [S. l.], v. 11, n. 3, p. 41–48, 2021. DOI: 10.26881/jpgs.2021.3.04. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/JGPS/article/view/6317. Acesso em: 16 may. 2024.