1.
NAQVI AM, TANDON JN. The very long lived M-Regions near the Sunspot Minimum of 1933. MAUSAM [Internet]. 1955Jul.1 [cited 2024Dec.3];6(3):251-3. Available from: https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/4482