Appl. Math. Vol.8 No.6, June 30, 2017 DOI:10.4236/am.2017.86069
Appl. Math. Vol.8 No.6, June 29, 2017 DOI:10.4236/am.2017.86068
Appl. Math. Vol.8 No.6, June 29, 2017 DOI:10.4236/am.2017.86067
Appl. Math. Vol.8 No.6, June 28, 2017 DOI:10.4236/am.2017.86066
Appl. Math. Vol.8 No.6, June 21, 2017 DOI:10.4236/am.2017.86065
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]