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+keyword:(stratosphaere)
Lidar measurements of the variability of stratospheric particulates
Aircraft turbine engine emissions under simulated supersonic flight conditions
Direction-finding measurements of type 3 radio bursts out of the ecliptic plane
Ultralightweight solar array for naval sea control systems
Kommunikations- und Navigationssysteme fuer Mehrtages-Missionen mit Stratosphaeren-Ballonen