ZHONG, Zimu. Principle and State-of-art Observation Scenarios of Black Holes. Highlights in Science, Engineering and Technology, [S. l.], v. 72, p. 129–135, 2023. DOI: 10.54097/p5450f83. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/12912. Acesso em: 3 jun. 2026.