YACOB, A., and N. S. SASTRI. “The Morphology of Great Geomagnetic Storms Recorded at Alibag for the Period 1905 to 1945 : Part 11- The Disturbance Local Time Inequality, DS and the Disturbance Daily Variation, SD”. MAUSAM 17, no. 2 (April 1, 1966): 187–198. Accessed May 27, 2024. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/5815.