and S.M.PAUL KHURANA, NIRUPMA SHARMA, V. S. THAKUR, SANJEEV SHARMA*, J. MOHAN. “Development of Marssonina Blotch (Marssonina Coronaria) in Different Genotypes of Apple”. Indian Phytopathology, vol. 64, no. 4, Jan. 2012, pp. 358-62, https://epubs.icar.org.in/index.php/IPPJ/article/view/13985.