Am. J. Oper. Res. Vol.2 No.4, November 30, 2012 DOI:10.4236/ajor.2012.24063
Am. J. Oper. Res. Vol.2 No.4, November 30, 2012 DOI:10.4236/ajor.2012.24062
Am. J. Oper. Res. Vol.2 No.4, November 30, 2012 DOI:10.4236/ajor.2012.24061
Am. J. Oper. Res. Vol.2 No.4, November 30, 2012 DOI:10.4236/ajor.2012.24060
Am. J. Oper. Res. Vol.2 No.4, November 30, 2012 DOI:10.4236/ajor.2012.24059
Am. J. Oper. Res. [ISSUE], [PUBDATE] DOI:[DOI]