RAO, K. S. RAJA, R. A. DUBEY, and S. R. PATIL. “Possible Linkage Between Solar and Geomagnetic Activity and Upper Atmospheric Phenomena”. MAUSAM 29, no. 4 (October 1, 1978): 671–674. Accessed February 26, 2024. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/2945.