KOZUBEK, Elżbieta; STRZELECKI, Zbigniew. Contemporary Approach to Specialization in Mazovi. Kwartalnik Kolegium Ekonomiczno-Społecznego. Studia i Prace, [S. l.], n. 4, p. 119–138, 2016. DOI: 10.33119/KKESSiP.2016.4.6. Disponível em: https://econjournals.sgh.waw.pl/kwes/article/view/96. Acesso em: 24 lis. 2024.