THIRUVENKATACHAR, V. R. Artificial earth satellites. Defence Science Journal, [S. l.], v. 8, n. 4, p. 311–325, 2014. DOI: 10.14429/dsj.8.7604. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7604. Acesso em: 6 jul. 2025.