Am. J. Oper. Res. Vol.3 No.1, January 30, 2013 DOI:10.4236/ajor.2013.31006
Am. J. Oper. Res. Vol.3 No.1, January 30, 2013 DOI:10.4236/ajor.2013.31005
Am. J. Oper. Res. Vol.3 No.1, January 30, 2013 DOI:10.4236/ajor.2013.31004
Am. J. Oper. Res. Vol.3 No.1, January 30, 2013 DOI:10.4236/ajor.2013.31003
Am. J. Oper. Res. Vol.3 No.1, January 30, 2013 DOI:10.4236/ajor.2013.31002
Am. J. Oper. Res. [ISSUE], [PUBDATE] DOI:[DOI]