CZYŻEWSKI, Andrzej; MATUSZCZAK, Anna. Theoretical aspects of studies on agricultural economics and agrarian issues. Economics and Environment, Poland, v. 87, n. 4, p. 617, 1–24, 2024. DOI: 10.34659/eis.2023.87.4.617. Disponível em: https://ekonomiaisrodowisko.pl/journal/article/view/617. Acesso em: 16 may. 2026.