Khalaj, H.; Allahdadi, I.; Iranejad, H.; Akbari , G. A.; Bashi, M. M.; Baghestani, M.; Labbafi, M.; Mehrafarin, A. Using Nonlinear Regression Model for Estimation of Cardinal Temperatures in Three Medicinal Plants. Agr. Nat. Resour. 2015, 49, 165-173.