Abuamsha, R., H. . Hajjeh, and M. Salman. “Role of Overwintering Forms of Erysiphe Necator in Epidemiology of Grapevine Powdery Mildew in Palestinian Vineyards”. Palestine Technical University Research Journal, vol. 2, no. 1, Feb. 2014, pp. 20-25, doi:10.53671/pturj.v2i1.24.