Hosseini, Bahman, Nikhkhah Amirabad, Hamedeh, Fattah, Mohammad, Gosta, Yort (2017) ‘Effect of altitude and different phonological stages on essential composition and antioxidant activity of Ferula angulata (Schlecht.) Boiss from Dena altitudes’, Eco-phytochemical Journal of Medicinal Plants, 5(1), pp. 16-29. doi: