EL-BELTAGI, H. S., W. EL-DESOUKY, and R. S. YOUSEF. “Synergistic Antioxidant Scavenging Activities of Grape Seed and Green Tea Extracts Against Oxidative Stress”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, Vol. 44, no. 2, Dec. 2016, pp. 367-74, doi:10.15835/nbha44210358.