http://reply.papertrans.cn/3/281/28072/28072-31.png
http://reply.papertrans.cn/3/281/28072/28072-32.png
Submitted on: 10 December 2009.
Revised on: 20 January 2010.
Accepted on: 28 January 2010.
Small Structures
http://reply.papertrans.cn/3/281/28072/28072-34.png
http://reply.papertrans.cn/3/281/28072/28072-35.png
Submitted on: 13 December 2009.
Revised on: 29 December 2009.
Accepted on: 08 January 2010.
Small Structures---WILEY