Amer, M. M., A. A. Hanafei, G. A. Zhair, and W. A. A. El-Ghany,  "Immune response of broiler breeder chickens to inactive avian influenza H5N1 vaccine under field conditions.",  The 5th Scientific Conference of the Faculty of Veterinary Medicine, Beni-Suef University November, 6th -9th, pp. pp.79-86. , 2007.