NEUPANE, R.; DHITAL, N. Analysis and characterization of X-ray flare of Mkn 421 using XMM-Newton observation 0658801301. BIBECHANA, [S. l.], v. 20, n. 1, p. 55–64, 2023. DOI: 10.3126/bibechana.v20i1.53233. Disponível em: https://nepjol.info/index.php/BIBECHANA/article/view/53233. Acesso em: 17 aug. 2024.