TY - BOOK
AU - Portree, David S. F.
TI - Humans to Mars fifty years of mission planning, 1950 - 2000
PB - NASA History Division, Office of Policy and Plans, NASA Headquaters
SN - 9781780393056
KW - Marsflug
KW - Geschichte 1950-2000
PY - 2001
BT - Monographs in aerospace history ; 21
BT - NASA SP-2001-4521
CY - Washington, DC
UR - http://slubdd.de/katalog?TN_libero_mab2
ER -
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