Appl. Math. Vol.3 No.7, June 21, 2012 DOI:10.4236/am.2012.37120
Appl. Math. Vol.3 No.7, June 21, 2012 DOI:10.4236/am.2012.37108
Appl. Math. Vol.3 No.7, June 21, 2012 DOI:10.4236/am.2012.37114
Appl. Math. Vol.3 No.7, June 21, 2012 DOI:10.4236/am.2012.37119
Appl. Math. Vol.3 No.7, June 21, 2012 DOI:10.4236/am.2012.37104
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]