[2] viXra:1403.0688 submitted on 2014-03-23 03:27:29, (91 unique-IP downloads)
Authors: Xiaoying Du
Category: General Mathematics
[1] viXra:1403.0605 submitted on 2014-03-22 06:42:17, (154 unique-IP downloads)
Authors: Xiaoying Du
Category: General Mathematics