By Xu Kailiang   in Annals of Operations Research

ISSN:0254-5330|181|1|303-324

Springer Publishing Company ‎(2010)‎

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By Xu Kailiang   Feng Zuren   Ke Liangjun   in Annals of Operations Research

ISSN:0254-5330|186|1|383-391

Springer Publishing Company ‎(2011)‎

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