GRZELAK, Maria Magdalena. Income of Private Farms at the Turn of System Transition and European Integration. Comparative Economic Research. Central and Eastern Europe, Poland, v. 8, n. 1-2, p. 144–158, 2005. DOI: 10.18778/1508-2008.8.09. Disponível em: https://www.czasopisma.uni.lodz.pl/CER/article/view/30147. Acesso em: 10 aug. 2026.