Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ
îðèãèíàëüíîãî äîêóìåíòà
: http://www.astronomy.com/magazine/2006/09/space-scientists-look-at-future-mars-exploration
Äàòà èçìåíåíèÿ: Unknown Äàòà èíäåêñèðîâàíèÿ: Sun Apr 10 08:19:38 2016 Êîäèðîâêà: ISO8859-5 Ïîèñêîâûå ñëîâà: rigel |