http://reply.papertrans.cn/1/38/3764/3764-31.png
http://reply.papertrans.cn/1/38/3764/3764-32.png
http://reply.papertrans.cn/1/38/3764/3764-33.png
Submitted on: 03 October 2008.
Revised on: 20 December 2008.
Accepted on: 08 February 2009.
___________________Biosemiotics---SPRINGER
http://reply.papertrans.cn/1/38/3764/3764-35.png
Submitted on: 12 April 2001.
Revised on: 11 June 2001.
Accepted on: 27 July 2001.
___________________Biosemiotics---SPRINGER