[6]Ma Shihua,Liu Xiaoqun Research of supply chain plant location considered the bill of
materials and time restriction .WSEAS TRANSACTIONS ON COMPUTERS[J].2006.5(3):492-
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[6]Ma Shihua,Liu Xiaoqun Research of supply chain plant location considered the bill of
materials and time restriction .WSEAS TRANSACTIONS ON COMPUTERS[J].2006.5(3):492-
499.