GHOLINEZHAD, E., A. AYNABAND, A. HASSANZADE GHORTHAPEH, G. NOORMOHAMADI, and I. BERNOUSI. “Study of the Effect of Drought Stress on Yield, Yield Components and Harvest Index of Sunflower Hybrid Iroflor at Different Levels of Nitrogen and Plant Population”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, Vol. 37, no. 2, Nov. 2009, pp. 85-94, doi:10.15835/nbha3723255.