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Submitted on: 29 May 2003.
Revised on: 07 August 2003.
Accepted on: 12 September 2003.
___________________Acta Geodaetica et Geophysica---SPRINGER
Submitted on: 09 February 2022.
Revised on: 13 March 2022.
Accepted on: 26 March 2022.
___________________Acta Geodaetica et Geophysica---SPRINGER
Submitted on: 11 May 1998.
Revised on: 09 June 1998.
Accepted on: 06 July 1998.
___________________Acta Geodaetica et Geophysica---SPRINGER
Submitted on: 21 April 1998.
Revised on: 09 August 1998.
Accepted on: 02 September 1998.
___________________Acta Geodaetica et Geophysica---SPRINGER
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Submitted on: 17 May 2010.
Revised on: 08 July 2010.
Accepted on: 30 July 2010.
___________________Acta Geodaetica et Geophysica---SPRINGER
Submitted on: 11 October 2022.
Revised on: 28 November 2022.
Accepted on: 04 January 2023.
___________________Acta Geodaetica et Geophysica---SPRINGER