00512nam 2200169z- 450 9910693476803321(CKB)25434225900041(EXLCZ)992543422590004120240129c2008uuuu -u- -engSpectrum management : key to the future of unmanned aircraft systems?Maxwell Air Force Base, AlaAir University PressSpectrum ManagementBOOK9910693476803321Spectrum management3479778UNINA