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Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ
îðèãèíàëüíîãî äîêóìåíòà
: http://www.astronomy.com/magazine/ask-astro/2006/10/how-do-astronomers-determine-the-ages-of-stars
Äàòà èçìåíåíèÿ: Unknown Äàòà èíäåêñèðîâàíèÿ: Sun Apr 10 12:48:24 2016 Êîäèðîâêà: ISO8859-5 Ïîèñêîâûå ñëîâà: arp 220 |