1. Progress in Additive Manufacturing and Rapid Prototyping;Kruth;Annals of the CIRP,1998
2. Leu, M.C. and Zhang, W., 1998, Research and Development of Rapid Prototyping and Tooling in the United States, Proc. of First International Conference on Rapid Prototyping and Manufacturing, Beijing, China.
3. Jacobs, P.F., 1997, Recent Advances in Rapid Tooling from Stereolithography, Proc. of the Seventh International Conference on Rapid Prototyping, San Francisco.
4. Three-Dimensional printing: Rapid Tooling and Prototyping Directly from a CAD Model;Sachs;Annals of the CIRP,1990
5. Selective Laser Sintering of Metals;Bourell;J. of Manufacturing Science and Engineering ASME,1994