1. A third industrial revolution. Economist, April 21, 2012. Paul Markillie.
2. The FAA Cleared the First 3D Printed Part to Fly in a Commercial Jet Engine from GE. (accessed 22.08.18).
3. The Blade Runners: This Factory Is 3D Printing Turbine Parts For The World’s Largest Jet Engine. (accessed 15.02.19).
4. EBM® for Orthopedic Implants–quality of life built with Additive Manufacturing. (accessed 15.02.19).
5. The Economist Takes a Look at 3D Printing. Economist, July 4, 2017. Michael Petch.