KHATIWODA, D. History and Facts about Black Holes. Himalayan Physics, [S. l.], v. 1, p. 90–92, 2011. DOI: 10.3126/hj.v1i0.5190. Disponível em: https://www.nepjol.info/index.php/HP/article/view/5190. Acesso em: 23 apr. 2024.