1. 1) “Standard Terminology for Additive Manufacturing Technologies” ASTM Standard F 2792―12 a(2012)
2. 3) “We Can't Wait : Obama Administration Announces New Public-Private Partnership to Support,” http://www.whitehouse.gov/the-press-office/2012/08/16/we-can-t-wait-obama-administration-announces-newpublic-private-partners (accessed 2014/2/12)
3. 6) Renault F 1 Team and 3 D Systems Launch Advanced Digital Manufacturing Centre―ATZ Online, http://www.atzonline.com/index.php;do=show/site=a4e/sid=16077625564c1df7d16dcce962279054/alloc=1/id=4471 (accessed 2013/9/1)
4. 7) Wohlers, T. : Wohlers Report 2005 Wohlers Associate Inc., CO, USA, 157(2005)
5. 8) Wohlers, T. : Wohlers Report 2006 Wohlers Associate Inc., CO, USA, 180(2006)