Orbital Sciences Corporation (Dutch Wikipedia)

Analysis of information sources in references of the Wikipedia article "Orbital Sciences Corporation" in Dutch language version.

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2orbitalatk.com

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orbitalatk.com

Orbital and ATK’s Aerospace and Defense Groups to Combine in $5 Billion Merger-of-Equals to Create “Orbital ATK”, a New Global Aerospace and Defense Systems Company. Orbital (29 april 2014). Geraadpleegd op 3 juli 2015.
Orbital ATK Marks First Day of Operations Following Completion of Merger (9 februari 2015). Geraadpleegd op 3 juli 2015.