http://reply.papertrans.cn/3/259/25888/25888-21.png
Submitted on: 23 October 1998.
Revised on: 01 December 1998.
Accepted on: 26 December 1998.
Qualitative Theory of Dynamical Systems
http://reply.papertrans.cn/3/259/25888/25888-23.png
Submitted on: 17 April 2004.
Revised on: 26 May 2004.
Accepted on: 15 June 2004.
Qualitative Theory of Dynamical Systems
Submitted on: 30 January 2003.
Revised on: 10 February 2003.
Accepted on: 03 March 2003.
Qualitative Theory of Dynamical Systems
Submitted on: 09 April 2007.
Revised on: 03 May 2007.
Accepted on: 23 May 2007.
Qualitative Theory of Dynamical Systems
Submitted on: 07 November 2005.
Revised on: 07 December 2005.
Accepted on: 31 December 2005.
Qualitative Theory of Dynamical Systems
http://reply.papertrans.cn/3/259/25888/25888-28.png
Submitted on: 16 June 2007.
Revised on: 08 July 2007.
Accepted on: 24 July 2007.
Qualitative Theory of Dynamical Systems
Submitted on: 23 December 2003.
Revised on: 05 February 2004.
Accepted on: 19 February 2004.
Qualitative Theory of Dynamical Systems