A frame of reference for extraterrestrial enterprises
Acta astronautica ; 29 , 10-11
1993
Aufsatz (Zeitschrift)
Englisch
A frame of reference for extraterrestrial enterprises
British Library Conference Proceedings | 1992
|NTRS | 1966
|NTRS | 1972
|NTRS | 1989
|EXTRATERRESTRIAL CIVILISATIONS - The Development of Politics in Extraterrestrial Colonies
Online Contents | 2000
|