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Kosmos-2251 Tham khảoLiên quan
Kosmos-2251 Kosmos 359 Kosmopoisk Kosmos 202 Kosmoceratops Kosmos 167 Kosmos 419 Kosmos 146 Kosmos 140 KosmogoniaTài liệu tham khảo
WikiPedia: Kosmos-2251 http://www.astronautix.com/k/kosmos11k65m.html http://www.astronautix.com/s/strela-2m.html http://www.space.com/news/090211-satellite-collisi... http://old.themoscowtimes.com/news/article/first-s... http://www.thespacereview.com/article/1314/2 http://www.thespacereview.com/article/2023/1 http://www.unoosa.org/oosa/search.do?international... http://www.oosa.unvienna.org/pdf/pres/stsc2011/tec... http://news.bbc.co.uk/2/hi/science/nature/7885051.... https://books.google.com.au/books?id=q6qyVkapjeoC&...