PINTAR, M.; ZAGORC, B. Impact of nitrogen fertilisation on the economic efficiency of winter wheat yield. Economics of Agriculture, [S. l.], v. 57, n. Spec.num.2, p. 243–250, 2010. Disponível em: https://ea.bg.ac.rs/index.php/EA/article/view/997. Acesso em: 7 may. 2024.