Régimen Jurídico de la Orbita Sincrónica Geoestacionaria (Legal Regulations of Synchronic Geo-Stationary Orbits) (Quito, Central Bank of Ecuador, 1987)
Régimen Jurيdico de la Orbita Sincrَnica Geoestacionaria (Legal Regulations of Synchronic Geo-Stationary Orbits) (Quito, Central Bank of Ecuador, 1987)