Submitted on: 12 November 2009.
Revised on: 08 December 2009.
Accepted on: 17 December 2009.
Structures
Submitted on: 08 April 2003.
Revised on: 22 April 2003.
Accepted on: 11 May 2003.
Structures
http://reply.papertrans.cn/3/288/28784/28784-23.png
Submitted on: 06 May 2019.
Revised on: 27 May 2019.
Accepted on: 19 June 2019.
Structures
http://reply.papertrans.cn/3/288/28784/28784-25.png
http://reply.papertrans.cn/3/288/28784/28784-26.png
http://reply.papertrans.cn/3/288/28784/28784-27.png
http://reply.papertrans.cn/3/288/28784/28784-28.png
Submitted on: 08 April 2016.
Revised on: 10 May 2016.
Accepted on: 21 May 2016.
Structures
Submitted on: 24 April 2007.
Revised on: 28 May 2007.
Accepted on: 16 June 2007.
Structures