RAO, K. R.; BALKUNDI, H. V. Study of Variation in Upper Air Density Over India. Defence Science Journal, [S. l.], v. 30, n. 1, p. 31–44, 2014. DOI: 10.14429/dsj.30.6411. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6411. Acesso em: 16 jun. 2025.