http://reply.papertrans.cn/2/176/17536/17536-31.png
http://reply.papertrans.cn/2/176/17536/17536-32.png
http://reply.papertrans.cn/2/176/17536/17536-33.png
Submitted on: 18 November 2011.
Revised on: 12 January 2012.
Accepted on: 07 March 2012.
___________________Journal of Inverse and Ill-Posed Problems
http://reply.papertrans.cn/2/176/17536/17536-35.png
Submitted on: 17 November 2020.
Revised on: 24 February 2021.
Accepted on: 06 April 2021.
___________________Journal of Inverse and Ill-Posed Problems