http://reply.papertrans.cn/2/160/15980/15980-11.png
http://reply.papertrans.cn/2/160/15980/15980-12.png
Submitted on: 12 July 2015.
Revised on: 25 October 2015.
Accepted on: 29 November 2015.
___________________JOURNAL OF COMBINATORIAL OPTIMIZATION
Submitted on: 14 April 2010.
Revised on: 30 May 2010.
Accepted on: 13 June 2010.
___________________JOURNAL OF COMBINATORIAL OPTIMIZATION
http://reply.papertrans.cn/2/160/15980/15980-15.png
http://reply.papertrans.cn/2/160/15980/15980-16.png
Submitted on: 03 July 2006.
Revised on: 12 August 2006.
Accepted on: 23 August 2006.
___________________JOURNAL OF COMBINATORIAL OPTIMIZATION
Submitted on: 14 October 2007.
Revised on: 10 January 2008.
Accepted on: 03 February 2008.
___________________JOURNAL OF COMBINATORIAL OPTIMIZATION
http://reply.papertrans.cn/2/160/15980/15980-19.png
Submitted on: 19 June 2000.
Revised on: 10 July 2000.
Accepted on: 07 September 2000.
___________________JOURNAL OF COMBINATORIAL OPTIMIZATION