Appl. Math. Vol.9 No.1, January 30, 2018 DOI:10.4236/am.2018.91006
Appl. Math. Vol.9 No.1, January 30, 2018 DOI:10.4236/am.2018.91005
Appl. Math. Vol.9 No.1, January 26, 2018 DOI:10.4236/am.2018.91004
Appl. Math. Vol.9 No.1, January 23, 2018 DOI:10.4236/am.2018.91003
Appl. Math. Vol.9 No.1, January 19, 2018 DOI:10.4236/am.2018.91002
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]