Viorel ION, Georgeta DICU, Adrian Gheorghe BĂȘA, and Daniel STATE. 2013. “Yield Components at Some Hybrids of Sunflower (Helianthus Annuus L.) under Drought Conditions from South Romania”. AgroLife Scientific Journal 2 (2). https://agrolifejournal.usamv.ro/index.php/agrolife/article/view/354.