2Price Crop.PRICE whitepaper_v1.1_031804_single[M].New Jersey:Price Systems L L C,2005:2-25.
3Baydar C,Saitou K.Automated Generation of Robust ErrorRecovery Logic in Assembly Systems Using Genetic Program-ming[J].Journal of Manufacturing Systems,2001,20(1):55-68.
5Kiritsis D,Neuendorf K P,Xirouchakis P.Petri net techniquesfor process planning cost estimation[J].Advances in Engi-neering Software,1999,30(6):375-387.