Am. J. Oper. Res. Vol.1 No.4, December 05, 2011 DOI:10.4236/ajor.2011.14026
Am. J. Oper. Res. Vol.1 No.4, December 05, 2011 DOI:10.4236/ajor.2011.14029
Am. J. Oper. Res. Vol.1 No.4, December 05, 2011 DOI:10.4236/ajor.2011.14022
Am. J. Oper. Res. Vol.1 No.4, December 05, 2011 DOI:10.4236/ajor.2011.14033
Am. J. Oper. Res. Vol.1 No.4, December 05, 2011 DOI:10.4236/ajor.2011.14025
Am. J. Oper. Res. [ISSUE], [PUBDATE] DOI:[DOI]