SANTOS, Henrique Pereira; FONTANELI, Renato Serena; AMBROSI, Ivo. Risk analysis of crop production systems including winter and summer annual forages under no-tillage . Pesquisa Agropecuária Gaúcha, [S. l.], v. 10, n. 1/2, p. 59–65, 2004. Disponível em: https://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/299. Acesso em: 14 nov. 2026.