Northrop Grumman Innovation Systems (Slovak Wikipedia)

Analysis of information sources in references of the Wikipedia article "Northrop Grumman Innovation Systems" in Slovak language version.

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nasaspaceflight.com

  • NASA awards CRS2 contracts to SpaceX, Orbital ATK, and Sierra Nevada [online]. nasaspaceflight.com, [cit. 2018-11-03]. Dostupné online.

northropgrumman.com

parabolicarc.com

  • Orbital ATK, NASA Test Five-Segment SLS Rocket Motor [online]. parabolicarc.com, [cit. 2018-11-03]. Dostupné online. Archivované 2018-11-03 z originálu.

web.archive.org

  • Northrop Grumman Corporation [online]. northropgrumman.com, [cit. 2018-11-03]. Dostupné online. Archivované 2017-10-06 z originálu.
  • Orbital ATK, NASA Test Five-Segment SLS Rocket Motor [online]. parabolicarc.com, [cit. 2018-11-03]. Dostupné online. Archivované 2018-11-03 z originálu.