SRINIVASAMURTHY, B. “The Diurnal Variation of Sizes of Sudden Commencements and Impulses in the Kodaikanal Magneto Grams”. MAUSAM 11, no. 1 (January 1, 1960): 64–68. Accessed December 3, 2024. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/4098.