1. Rice, Donald, Global reach – global power: the evolving air force contribution to national security, Air Force White Paper, December, 1992.
2. America’s Air Force Vision 2020, available via restricted-access military website.
3. Phelps engineered plastics. Available from: www.pepcore.com.
4. ASTM Standard C365, Standard test method for flatwise compressive properties of sandwich cores. Available from: www.astm.org.