Sastri, J.Hanunath, and B. Suryanarayana Murthy. “Seasonal Variation of Night Time Pi2 Micropulsations at Kodaikanal”. MAUSAM 28, no. 2 (April 1, 1977): 254–255. Accessed September 19, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/2698.