THEUVSEN, Ludwig. Tempora mutantur, nos et mutamur in illis. German Journal of Agricultural Economics, [S. l.], v. 58, n. 4, 2009. DOI: 10.52825/gjae.v58i4.1748. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/1748. Acesso em: 25 nov. 2024.