S.C. BHARDWAJ and R. BHATNAGAR, J. KUMAR, S.K. NAYAR, M. PRASHAR,. “New Variants 47S103 and 102S100 of Puccinia Striiformis in India”. Indian Phytopathology, vol. 47, no. 3, Jan. 2002, pp. 258-9, https://epubs.icar.org.in/index.php/IPPJ/article/view/21103.