and J.C. ZADOKS, S. NAGARAJAN*, K.H. KOGEL. “Epidemiological Analysis of the Damage Potential of Pgt-Ug99 in Central East, North East Africa; Iran and Punjab (India)”. Indian Phytopathology, vol. 67, no. 1, Feb. 2014, pp. 26-32, https://epubs.icar.org.in/index.php/IPPJ/article/view/39582.