“On the Monsoons of South America Part 2 : Interaction With Extratropical Disturbances and Formation of Tropical Depressions and Upper-Tropospheric Cyclonic Vortices”. MAUSAM 55, no. 2 (April 1, 2004): 237–256. Accessed December 22, 2025. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/1080.