1. Three-Dimensional Printing: Rapid Tooling and Prototypes Directly from a CAD Model;Sachs;CIRP Annals - Manufacturing Technology,1990
2. Sachs, E.M., Haggerty, J.S., Cima, M.J., Williams, P.A. (1993). Three-dimensional printing techniques. U.S. Patent No. 5,204,055. Washington, D.C.: U.S. Patent and Trademark Office.
3. Utela, B., Storti, D., Anderson, R., Ganter, M. (2008). A review of process development steps for new material systems in three-dimensional printing (3DP). Journal of Manufacturing Processes, 10(2), 96 104.
4. Nanotec GmbH (2012) Product catalogue 2012 (page 78-79). Retrieved from http://en.nanotec.com/katalog/en_2012.
5. Shanjani, Y., & Toyserkani, E. (2008). Material spreading and compaction in powder-based solid freeform fabrication methods: Mathematical modeling. Proc. Solid Freeform Fabrication on Symposium 2008, 399 410.