Novák A. The effect of the sowing time on the yield and oil content of sunflower (Helianthus annus L.) in different crop protection models. Acta agrar. Debr. [Internet]. 2015 Mar. 5 [cited 2024 Nov. 22];(64):57-61. Available from: https://ojs.lib.unideb.hu/actaagrar/article/view/1863