Vincze, Éva and Pepó, P. 2018. The effect of sowing date and plant density of winter oilseed rape (Brassica napus var. napus f. biennis L.) population. Acta Agraria Debreceniensis. 74 (Jun. 2018), 213–215. DOI:https://doi.org/10.34101/actaagrar/74/1694.