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    Advanced Passive Communication Satellite Systems Comparison Studies. Volume 2 - Technical Discussion Final Report

    R. D. Ray / E. J. Roth / J. Roth et al. | NTIS | 1969
    Schlagwörter: Communication satellites , Passive satellites , Voice communication

    Advanced Passive Communication Satellite Systems Comparison Studies. Volume 1 - Summary Final Report

    R. D. Ray / E. J. Roth / J. Roth et al. | NTIS | 1969
    Schlagwörter: Communication satellites , Passive satellites