Appl. Math. Vol.6 No.14, December 31, 2015 DOI:10.4236/am.2015.614208
Appl. Math. Vol.6 No.14, December 31, 2015 DOI:10.4236/am.2015.614207
Appl. Math. Vol.6 No.14, December 31, 2015 DOI:10.4236/am.2015.614206
Appl. Math. Vol.6 No.14, December 31, 2015 DOI:10.4236/am.2015.614205
Appl. Math. Vol.6 No.14, December 31, 2015 DOI:10.4236/am.2015.614204
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]