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Submitted on: 18 April 2014.
Revised on: 15 May 2014.
Accepted on: 02 July 2014.
___________________Bulletin of the Lebedev Physics Institute
Submitted on: 28 June 2021.
Revised on: 21 July 2021.
Accepted on: 05 September 2021.
___________________Bulletin of the Lebedev Physics Institute
Submitted on: 30 September 2012.
Revised on: 31 December 2012.
Accepted on: 01 March 2013.
___________________Bulletin of the Lebedev Physics Institute
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Submitted on: 22 August 1999.
Revised on: 15 October 1999.
Accepted on: 09 November 1999.
___________________Bulletin of the Lebedev Physics Institute
Submitted on: 23 September 2013.
Revised on: 19 November 2013.
Accepted on: 14 January 2014.
___________________Bulletin of the Lebedev Physics Institute
Submitted on: 20 November 2018.
Revised on: 13 March 2019.
Accepted on: 24 March 2019.
___________________Bulletin of the Lebedev Physics Institute
Submitted on: 21 August 2006.
Revised on: 23 September 2006.
Accepted on: 18 October 2006.
___________________Bulletin of the Lebedev Physics Institute