1. The final acts of the World Administrative radio conference for space telecommunications, (ITU, Geneva 1971),ITU:
2. ‘Performance characteristics of earth stations’, INTELSAT document, ICSC-37-38, 1969 INTELSAT:
3. ‘Performance characteristics of earth stations in the INTELSAT IV system’, INTELSAT document, ICSC-45-13, 1970 INTELSAT: