By Lowe T.J.   Wendell R.E.   Hu G.   in European Journal of Operational Research

ISSN:0377-2217|136|3|573-590

Elsevier‎(2002)‎

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By Lowe T J   in Journal of the Operational Research Society

ISSN:1476-9360|64|7|973-981

Palgrave Macmillan Ltd‎(2013)‎

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