BIELAK, J. Abstract of M. Drozdowicz-Bieć’s Cykle i wskaźniki koniunktury. Regional Barometer. Analyses & Prognoses, [S. l.], n. 1 (27), p. 87–88, 2012. DOI: 10.56583/br.1272. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1272. Acesso em: 22 nov. 2024.