León Vega, Cirilo Gabino, Adrian E. Elizálde Medrano, and Erick Velazquez Lozada. “Satellite System Problems in Mexico”. Proceedings of the 56th Annual Meeting of the ISSS - 2012, San Jose, CA, USA00 (March 12, 2013). Accessed December 11, 2023. https://journals.isss.org/index.php/proceedings56th/article/view/1785.