VASILIEV, N.; ASTOVER, A.; MÕTTE, M. Efficiency of Estonian grain farms in 2000 2004. Agricultural and Food Science, [S. l.], v. 17, n. 1, p. 31–40, 2008. DOI: 10.2137/145960608784182272. Disponível em: https://journal.fi/afs/article/view/5899. Acesso em: 22 nov. 2024.