4Luis Bertoia,César López,Ruggero Burak.Biplot Analysis of Forage Combining Ability in Maize LandracesCrop Science,2006.
5Shirland Larry E,Jesse Richard R,Thompson Ronald L,et al.Determining attribute weights using mathematical programmingOmega,2003.
6Kahraman C,Cebeci U,Ruan D.Multi-attribute Com-parison of Catering Service Companies Using FuzzyAHP:the Case of TurkeyInternational Journal ofProduction Economics,2004.
7Univ.Tokyo.I-K-3 A Four-Index Transformation in Dirac‘s Four Comp-onent Relativistic TheoryThe Journal of Chemical Physics,2003.