1. Griffith ML, Harwell LD, Romero JT, Schllieenger E, Atwood CL, Smugeresky JE. Multi-material processing by LENS. In: Proceedings of Solid Freeform Fabrication Symposium, 1997:387–397.
2. Shape deposition manufacturing of heterogeneous structures;Weiss;J Manu Sys,1997
3. Mahmoodi P. On the optimum design of a rotating disk of nonuniform thickness. ASME Paper 69-DE-8.
4. Optimum shape design of rotating disks;Bhavikatti;Comput Struct,1980
5. Optimal flywheel design with general thickness form representation;Sandgren;J Mech Trans Automation Des,1983