Submitted on: 03 January 2000.
Revised on: 18 January 2000.
Accepted on: 03 February 2000.
NULL
http://reply.papertrans.cn/3/224/22344/22344-32.png
Submitted on: 19 February 2003.
Revised on: 20 March 2003.
Accepted on: 01 April 2003.
Morphology---SPRINGER
Submitted on: 21 May 2004.
Revised on: 29 May 2004.
Accepted on: 13 June 2004.
NULL
http://reply.papertrans.cn/3/224/22344/22344-35.png
Submitted on: 14 November 2016.
Revised on: 23 November 2016.
Accepted on: 14 December 2016.
NULL