LÖTJÖNEN, T.; MIKKOLA, H. J. Three mechanical weed control techniques in spring cereals. Agricultural and Food Science, [S. l.], v. 9, n. 4, p. 269–278, 2000. DOI: 10.23986/afsci.5668. Disponível em: https://journal.fi/afs/article/view/5668. Acesso em: 25 apr. 2024.