Some features of magnetic elements at Trivandrum and Annamalainagar, situated near the geomagnetic equator in the Indian Peninsula . MAUSAM [Internet]. 1959 Oct. 1 [cited 2025 Dec. 29];10(4):377-92. Available from: https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/4077