http://reply.papertrans.cn/2/105/10429/10429-21.png
Submitted on: 04 July 1999.
Revised on: 19 October 1999.
Accepted on: 07 December 1999.
___________________Gender Issues---SPRINGER
Submitted on: 07 July 2000.
Revised on: 23 August 2000.
Accepted on: 03 October 2000.
___________________Gender Issues---SPRINGER
Submitted on: 01 May 2004.
Revised on: 29 July 2004.
Accepted on: 26 September 2004.
___________________Gender Issues---SPRINGER
http://reply.papertrans.cn/2/105/10429/10429-25.png
http://reply.papertrans.cn/2/105/10429/10429-26.png
Submitted on: 19 August 2021.
Revised on: 26 October 2021.
Accepted on: 28 November 2021.
___________________Gender Issues---SPRINGER
Submitted on: 14 February 2005.
Revised on: 13 April 2005.
Accepted on: 31 May 2005.
___________________Gender Issues---SPRINGER
http://reply.papertrans.cn/2/105/10429/10429-29.png
Submitted on: 23 July 2006.
Revised on: 12 November 2006.
Accepted on: 08 January 2007.
___________________Gender Issues---SPRINGER