China prepares for manned flight . NASA awaits Mars touchdown
Flight international ; 156 , 4705 ; 26
1999
Aufsatz (Zeitschrift)
Englisch
Welt , Zeitschrift , Luftverkehr , Mechanik , Luftfahrt
China prepares for manned flight - A celebration in stamps and postcards
Online Contents | 2002
|Technology for manned Mars flight
NTRS | 1989
|SPACE TECHNOLOGY - NASA prepares laser link from Mars orbiter
Online Contents | 2003
NASA Facts: Manned Space Flight: Apollo
NTIS | 1965