SACRISTÁN - ROMERO, F. Structure of the spanish system of satellite of communications. Journal of Applied Research and Technology, [S. l.], v. 5, n. 01, 2007. DOI: 10.22201/icat.16656423.2007.5.01.543. Disponível em: https://jart.icat.unam.mx/index.php/jart/article/view/543. Acesso em: 29 mar. 2024.