[2] viXra:1706.0184 submitted on 2017-06-11 11:16:34, (243 unique-IP downloads)
Authors: Xi Chen, Jing Li, Yunfei Zhang, Liangliang Tao, Wei Shen
Category: General Mathematics
[1] viXra:1403.0608 submitted on 2014-03-22 06:38:45, (36 unique-IP downloads)
Authors: Jing Li
Category: General Mathematics