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ralph lauren polo


First Author:
 
Yan-an Hwang
Department of Applied Mathematics, National Dong Hwa University, Hualien, Taiwan
yahwang@mail.ndhu.edu.tw
 
 
 
 

Second Author:

Tsung-fu Wang
Department of Applied Mathematics, National Dong Hwa University, Hualien, Taiwan
d9211002@mail.ndhu.edu.tw