RASTOGI, S. C. Some New Coordinate Systems in a Riemannian Space. Defence Science Journal, [S. l.], v. 22, n. 1, p. 27–30, 2014. DOI: 10.14429/dsj.22.6303. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6303. Acesso em: 7 jul. 2025.