SANATANI, S. Stephen Hawking : The Universe in a Nutshell. Indian Science Cruiser, [S. l.], v. 17, n. 4, p. 55–56, 2003. Disponível em: http://www.informaticsjournals.com/index.php/ISC/article/view/38416. Acesso em: 12 may. 2024.