NASA NTRS · 19700024013
Global navigation and traffic control using satellites
Abstract
Satellite system for position determination, traffic control, and communications
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Brandel, D. L., Engels, P. D., Keane, L. M., Waetjen, R. M.. 1970-07-01. Global navigation and traffic control using satellites. https://ntrs.nasa.gov/citations/19700024013
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