CSIMA, Ferenc; BORBÉLY, Ákos. Trend calculation of quantitative and qualitative factors in sugar beet production until 2015. REGIONAL AND BUSINESS STUDIES, [S. l.], v. 2, n. 2, p. 7–15, 2010. Disponível em: https://journal.uni-mate.hu/index.php/rbs/article/view/427. Acesso em: 5 dec. 2025.