Etienne Brosse Yvon Gardan Estelle Perrin DIJA PROJECT: Forging Preforms Design Using Trade Knowledge. 244-249 2006 conf/gmai/2006 GMAI http://doi.ieeecomputersociety.org/10.1109/GMAI.2006.17 db/conf/gmai/gmai2006.html#BrosseGP06