CZERNY, M.; CZERNY, A. Sustainable Development and Policies or Strategies Concerning Resources. Regional Barometer. Analyses & Prognoses, [S. l.], v. 13, n. 1, p. 7–12, 2015. DOI: 10.56583/br.956. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/956. Acesso em: 8 nov. 2024.