BIELAK, J.; KOWERSKI, M. Dynamics of Economic Development Measure. Fiftieth Anniversary of Publication of the Article by Prof. Zdzisław Hellwig. Regional Barometer. Analyses & Prognoses, [S. l.], v. 16, n. 4, p. 153–165, 2019. DOI: 10.56583/br.56. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/56. Acesso em: 20 may. 2024.