[2] viXra:1403.0349 submitted on 2014-03-21 03:46:45, (49 unique-IP downloads)
Authors: Ding Liping
Category: General Mathematics
[1] viXra:1403.0235 submitted on 2014-03-15 03:16:40, (31 unique-IP downloads)
Authors: Ding Liping
Category: General Mathematics