Appl. Math. Vol.5 No.11 , June 20, 2014 DOI:10.4236/am.2014.511164
Appl. Math. Vol.5 No.11 , June 20, 2014 DOI:10.4236/am.2014.511163
Appl. Math. Vol.5 No.11 , June 20, 2014 DOI:10.4236/am.2014.511162
Appl. Math. Vol.5 No.11 , June 20, 2014 DOI:10.4236/am.2014.511161
Appl. Math. Vol.5 No.11 , June 20, 2014 DOI:10.4236/am.2014.511160
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]