4Prasad Y K D V.A set of heuristic algorithms for optimal nesting of two-dimesional irregularly shaped sheet-metal blanks[J].Computers in Industry, 1994, 24:55～70
5Han G.Two-stage approach for nesting in two-dimesional cutting problems using neural network and simulated annealing[J].Journal of Engineering Manufacture, 1996, 210(B6):509～519
