BALASUBRAMANIAN , C. ., and M. S. . DORAIRAJ. ‚ÄúSIGNIFICANCE AND FREQUENCY OF OCCURRENCE OF THUNDERSTORMS AT COIMBATORE‚ÄĚ. MAUSAM, vol. 9, no. 4, Oct. 1958, pp. 359-62, doi:10.54302/mausam.v9i4.4955.