1. “An Overview and Assessment of Plans and Programs for the Development of the Upgraded Third Generation Air Traffic Control System,” March 1975
2. “The Satellite as an Aid to Air Traffic Control,”;McDonald;A Survey of Modern Air Traffic Control,July 1975
3. “Report of the Interagency Task Force on Satellite Systems,” Vols. I and II July 1977
4. Elrod , B. D. Weinberg , A. Sinha L. P. “Investigation of Some Satellite-Aided ATC System Concepts Employing the NAVSTAR Global Positioning System,” January 1978
5. The National Aviation System Plan March 1975