Abdel-Ghani, Adel, et al. “Resistance of Barley Landraces and Wild Barley Populations to Powdery Mildew in Jordan”. Phytopathologia Mediterranea, vol. 47, no. 2, Aug. 2008, pp. 92-97, doi:10.14601/Phytopathol_Mediterr-2611.