9Wilson,Bruee G,Baetz,Brian W.Modeling munieipal solid waste colleetion systems using derived probability distributions l:model development[J].Joumal of Environmental Engineering,2001,12(11):1031-1035.
10Eiselt H A,Gendreau M,Laporte G.Arcroutingproblem.parⅠ:the chinese postman problem[J].Operations Research,1995,43:231-242.