http://reply.papertrans.cn/1/62/6179/6179-11.png
http://reply.papertrans.cn/1/62/6179/6179-12.png
Submitted on: 24 October 1998.
Revised on: 09 January 1999.
Accepted on: 22 January 1999.
___________________COMPUTATIONAL COMPLEXITY---SPRINGER BASEL AG
http://reply.papertrans.cn/1/62/6179/6179-14.png
http://reply.papertrans.cn/1/62/6179/6179-15.png
http://reply.papertrans.cn/1/62/6179/6179-16.png
Submitted on: 16 October 2004.
Revised on: 11 February 2005.
Accepted on: 02 March 2005.
___________________COMPUTATIONAL COMPLEXITY---SPRINGER BASEL AG
http://reply.papertrans.cn/1/62/6179/6179-18.png
Submitted on: 02 August 2013.
Revised on: 08 September 2013.
Accepted on: 04 November 2013.
___________________COMPUTATIONAL COMPLEXITY---SPRINGER BASEL AG
Submitted on: 30 March 2015.
Revised on: 23 July 2015.
Accepted on: 04 August 2015.
___________________COMPUTATIONAL COMPLEXITY---SPRINGER BASEL AG