U. Rosyara, R. Sharma, S. Shrestha, and E. Duveiller, “Yield and Yield Components Response to Defoliation of Spring Wheat Genotypes with Different Level of Resistance to Helminthosporium Leaf Blight”, J. Inst. Agric. Anim. Sci., vol. 26, pp. 43–50, Apr. 2005.