J. Appl. Math. Phys. Vol.6 No.8, August 31, 2018 DOI:10.4236/jamp.2018.68151
J. Appl. Math. Phys. Vol.6 No.8, August 31, 2018 DOI:10.4236/jamp.2018.68150
J. Appl. Math. Phys. Vol.6 No.8, August 30, 2018 DOI:10.4236/jamp.2018.68149
J. Appl. Math. Phys. Vol.6 No.8, August 29, 2018 DOI:10.4236/jamp.2018.68148
J. Appl. Math. Phys. Vol.6 No.8, August 29, 2018 DOI:10.4236/jamp.2018.68147
J. Appl. Math. Phys. [ISSUE], [PUBDATE] DOI:[DOI]