HOJKA, Zdravko. Effects of nitrogen fertilizing on the 1000-grain weight of maize inbred lines. Economics of Agriculture, [S.l.], v. 57, n. Spec.num.2, p. 153-160, dec. 2010. ISSN 2334-8453. Available at: <http://ea.bg.ac.rs/index.php/EA/article/view/985>. Date accessed: 30 oct. 2020.