1. Sachs EM, Partikalakis NM, Boning D, Cima MJ, Jackson TR, Resnick R. The distributed design and fabrication of metal parts and tooling by 3D Printing. In Proceedings of the 1998 NSF Design and Manufacturing Grantees Coherence, Cintermex Conference Center, Monterrey, Mexico. Arlington, VA: NSF, 1998:35–36.
2. Jackson TR, Patrikalakis NM, Sachs EM, Cima MJ. Modeling and designing components with locally controlled composition. In: Bourell DL, et al, editors. Solid freeform fabrication symposium. The University of Texas, Austin, Texas, 1998:259–266.
3. Fessler JR, Merz R, Nickel AH, Prinz FB. Laser deposition of metals for shape deposition manufacturing. In: Bourell DL, et al, editors. Solid freeform fabrication symposium. The University of Texas, Austin, Texas, 1996:12–14.
4. Multiple material solid free-form fabrication by selective area laser deposition;Jakubenas;Mater Des,1998
5. Sachs E, Haggerty J, Cima M, Williams P. Three-dimensional printing techniques. US Patent No. 5, 204, 055, 1993.