B. M. SINGH, A. K. SOOO AND. “Differences In Aggressiveness Among Isolates of TilIetia Foetida and TilIetia Caries”. Indian Phytopathology, vol. 43, no. 4, Jan. 2002, pp. 569-71, https://epubs.icar.org.in/index.php/IPPJ/article/view/22686.