Appl. Math. Vol.3 No.12, December 26, 2012 DOI:10.4236/am.2012.312276
Appl. Math. Vol.3 No.12, December 24, 2012 DOI:10.4236/am.2012.312275
Appl. Math. Vol.3 No.12, December 24, 2012 DOI:10.4236/am.2012.312274
Appl. Math. Vol.3 No.12, December 21, 2012 DOI:10.4236/am.2012.312273
Appl. Math. Vol.3 No.12, December 21, 2012 DOI:10.4236/am.2012.312272
Appl. Math. [ISSUE], [PUBDATE] DOI:[DOI]