Submitted on: 10 November 2008.
Revised on: 22 December 2008.
Accepted on: 15 January 2009.
Optimization Letters---SPRINGER HEIDELBERG
Submitted on: 20 June 2014.
Revised on: 03 August 2014.
Accepted on: 11 August 2014.
Optimization Letters---SPRINGER HEIDELBERG
Submitted on: 04 March 2018.
Revised on: 31 March 2018.
Accepted on: 07 April 2018.
Optimization Letters
http://reply.papertrans.cn/3/238/23739/23739-24.png
Submitted on: 27 December 2006.
Revised on: 31 January 2007.
Accepted on: 12 February 2007.
Optimization Letters
http://reply.papertrans.cn/3/238/23739/23739-26.png
http://reply.papertrans.cn/3/238/23739/23739-27.png
Submitted on: 09 June 2017.
Revised on: 10 July 2017.
Accepted on: 21 July 2017.
Optimization Letters
http://reply.papertrans.cn/3/238/23739/23739-29.png
Submitted on: 10 February 2008.
Revised on: 22 February 2008.
Accepted on: 18 March 2008.
Optimization Letters---SPRINGER HEIDELBERG