Propulsion system for very high altitude subsonic unmanned aircraft [microform] / David J. Bents ... [et al.] ([NASA technical memorandum] ; NASA/TM-1998-206636)
Propulsion system for very high altitude subsonic unmanned aircraft [microform] / David J. Bents ... [et al.]
原資料の出版事項: [Cleveland, Ohio] ; Springfield, VA : National Aeronautics and Space Administration, Lewis Research Center : National Technical Information Service, distributor, [1998]