Hojka, Zdravko, Jelena Bošković, Jeremija Simić, and Toma Krmpotić. “THE NITROGEN RATIONAL APPLICATION IN THE PLANT PRODUCTION WITH THE AIM TO MAINTAIN SUSTAINABILITY OF THE AGRO-ECO-SYSTEM”. Economics of Agriculture 53, no. 3 (September 30, 2006). Accessed May 2, 2024. https://ea.bg.ac.rs/index.php/EA/article/view/1479.