RIESINGER, P.; HERZON, I. Variability of herbage production in mixed leys as related to ley age and environmental factors: a farm survey. Agricultural and Food Science, [S. l.], v. 17, n. 4, p. 394–412, 2008. DOI: 10.2137/145960608787235522. Disponível em: https://journal.fi/afs/article/view/5925. Acesso em: 5 may. 2024.