Soyuz TMA-21 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Soyuz TMA-21" in English language version.

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cbsnews.com

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kursknet.ru

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nasa.gov

nasa.gov

  • NASA. "Consolidated Launch Manifest". NASA. Retrieved March 13, 2011.
  • NASA HQ (2009). "NASA and its International Partners Assign Space Station Crews". NASA. Retrieved October 7, 2009.
  • "New Expedition 27 Trio Docks to Station". NASA. April 6, 2011. Retrieved April 7, 2011.
  • "RELEASE: 11-303: Space Station Trio Lands Safely In Kazakhstan". Press Release Archives. NASA. Retrieved September 20, 2011.

nssdc.gsfc.nasa.gov

jsc.nasa.gov

nydailynews.com

articles.nydailynews.com

pravda.ru

english.pravda.ru

roscosmos.ru

ruaviation.com

ruvr.ru

english.ruvr.ru

space-travel.com

space.com

spaceflightnow.com

twitter.com

  • After 162 days aboard, @Astro_Ron & Expedition 28 crew undocked from space station at 8:38pmET to begin their voyage home. "Twitter". NASA. Retrieved September 15, 2011.

web.archive.org