1. Naval S&T Strategic Plan, Office of Naval Research, Arlington, VA, 1 September 2011, .
2. Bourell, D. L., Leu, M. C., and Rosen, D. W., “Roadmap for Additive Manufacturing,” The University of Texas at Austin, Austin, TX, 2009, .
3. Cyber-enabled Manufacturing Systems for Direct Digital Manufacturing, ONR BAA 14-004, ONR, Arlington, VA, 2014, .