NAGY, O. Energy use – in terms of efficiency. Acta Agraria Debreceniensis, [S. l.], n. 67, p. 61–66, 2016. DOI: 10.34101/actaagrar/67/1754. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/1754. Acesso em: 12 may. 2021.