Am. J. Oper. Res. Vol.1 No.3, September 30, 2011 DOI:10.4236/ajor.2011.13021
Am. J. Oper. Res. Vol.1 No.3, September 30, 2011 DOI:10.4236/ajor.2011.13020
Am. J. Oper. Res. Vol.1 No.3, September 30, 2011 DOI:10.4236/ajor.2011.13019
Am. J. Oper. Res. Vol.1 No.3, September 30, 2011 DOI:10.4236/ajor.2011.13018
Am. J. Oper. Res. Vol.1 No.3, September 30, 2011 DOI:10.4236/ajor.2011.13017
Am. J. Oper. Res. [ISSUE], [PUBDATE] DOI:[DOI]