OJHA, S. N.; VERMA, B. G. Spherical Quasi-Simple Waves in a Conducting Gas. The Journal of the Indian Mathematical Society, [S. l.], v. 35, n. 1-4, p. 249–254, 1971. DOI: 10.18311/jims/1971/16735. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/16735. Acesso em: 3 may. 2024.