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ISSN:0377-2217|91|1|89-98

Elsevier‎(1996)‎

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By Singhal J.   Singhal K.   in European Journal of Operational Research

ISSN:0377-2217|94|1|186-193

Elsevier‎(1996)‎

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By Cheng J-Z.   Singhal S.S.   Saini M.   Singhal J.   Piper J.T.   van Kuijk F.J.G.M.   Zimniak P.   Awasthi Y.C.   Awasthi S.   in Archives of Biochemistry and Biophysics

ISSN:0003-9861|372|1|29-36

Elsevier‎(1999)‎

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