Gutiérrez-Rodríguez, A., M. A, O. A, and o. “Production of the MSSM Higgs Bosons at Next Generation Linear $e^+e^-$ Colliders”. Revista Mexicana De Física, vol. 48, no. 5, Jan. 2002, pp. 413-0, https://rmf.smf.mx/ojs/index.php/rmf/article/view/3083.