7[4]Xiang L,Shen Y,He Y.et al.Application of rough set theory on factor analysis of influencing the grain output[J].Journal of Zhejiang Univeristy (Agric.&:Life Sci.),2003,29(3):343-346. 被引量:1
10L.Xiang, Y.Shen, Y.He, and X.Yu. Application of Rough Set Theory on Factor Analysis of Influencing the Grain Output[J]. Journal of Zhejiang Univeristy (Agric. & Life Sci.), 2003, 29 (3): 343-346. 被引量:1