Submitted on: 05 June 2017.
Revised on: 31 August 2017.
Accepted on: 15 October 2017.
___________________INVERSE PROBLEMS---IOP PUBLISHING LTD
Submitted on: 06 April 2005.
Revised on: 27 April 2005.
Accepted on: 15 June 2005.
___________________INVERSE PROBLEMS---IOP PUBLISHING LTD
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Submitted on: 27 December 2019.
Revised on: 17 March 2020.
Accepted on: 29 April 2020.
___________________INVERSE PROBLEMS---IOP PUBLISHING LTD
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