By Song D. P.   Earl C. F.   Hicks C.   in International Journal of Production Research

ISSN:1366-588X|39|9|1943-1954

Taylor & Francis Ltd‎(2001)‎

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By Song D.P.   Sun Y.X.   Xing W.   in Journal of Optimization Theory and Applications

ISSN:0022-3239|98|3|681-700

Springer Publishing Company ‎(1998)‎

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By Zhao W.   Gao B. -L.   Yang H. -Y.   Li H.   Song D. -P.   Xiang S. -T.   Shen J.   in Acta Radiologica

ISSN:0284-1851|48|2|186-192

Blackwell Publishing‎(2007)‎

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