Appl. Math. Vol.8 No.8, August 31, 2017 DOI:10.4236/am.2017.88091
Appl. Math. Vol.8 No.8, August 31, 2017 DOI:10.4236/am.2017.88090
Appl. Math. Vol.8 No.8, August 30, 2017 DOI:10.4236/am.2017.88089
Appl. Math. Vol.8 No.8, August 25, 2017 DOI:10.4236/am.2017.88088
Appl. Math. Vol.8 No.8, August 25, 2017 DOI:10.4236/am.2017.88087
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]