RAJ, Y. E. A. ., SURESH, R., SANKARAN, P. V. and AMUDHA, B. (2004) “Seasonal variation of 200 hPa upper tropospheric features over India in relation to performance of Indian southwest and northeast monsoons”, MAUSAM, 55(2), pp. 269–280. doi: 10.54302/mausam.v55i2.1082.