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2. United States (US) Army Training and Doctrine Command (TRADOC), TRADOC Pamphlet 525-3-1. The U.S. Army operating concept: Win in a complex world (2014), Available from TRADOC www.tradoc.army.mil/tpubs/pams/TP525-3-1.pdf
3. United States (US) Army, Army Capabilities Integration Center (ARCIC), Army Warfighting Challenges (AWFCs) (2016), Available from ARCIC. www.arcic.army.mil/Initiatives/ArmyWarfightingChallenges . As of 12 Feb 2016
4. United States (US) Department of Defense (DoD) Chief Information Officer (CiO), The DoD electromagnetic spectrum strategy: A call to action (2013). Available from DoD. http://archive.defense.gov/news/dodspectrumstrategy.pdf
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