Appl. Math. Vol.8 No.2, February 28, 2017 DOI:10.4236/am.2017.82021
Appl. Math. Vol.8 No.2, February 28, 2017 DOI:10.4236/am.2017.82020
Appl. Math. Vol.8 No.2, February 28, 2017 DOI:10.4236/am.2017.82019
Appl. Math. Vol.8 No.2, February 28, 2017 DOI:10.4236/am.2017.82018
Appl. Math. Vol.8 No.2, February 28, 2017 DOI:10.4236/am.2017.82017
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]