Ansari, MI, and Ranju Madan. “Sustenance of Global Climate Observation System Upper Air Network (GUAN) of India Meteorological Department”. MAUSAM 73, no. 3 (July 1, 2022): 637–650. Accessed June 16, 2024. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/2197.