Submitted on: 20 June 2002.
Revised on: 18 July 2002.
Accepted on: 05 September 2002.
___________________Journal of Applied Geodesy---WALTER DE GRUYTER GMBH
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Submitted on: 22 February 2009.
Revised on: 25 April 2009.
Accepted on: 07 May 2009.
___________________Journal of Applied Geodesy---WALTER DE GRUYTER GMBH
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Submitted on: 21 September 1999.
Revised on: 20 October 1999.
Accepted on: 11 November 1999.
___________________Journal of Applied Geodesy---WALTER DE GRUYTER GMBH
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Submitted on: 28 November 2001.
Revised on: 15 January 2002.
Accepted on: 22 February 2002.
___________________Journal of Applied Geodesy---WALTER DE GRUYTER GMBH
Submitted on: 19 June 2004.
Revised on: 08 September 2004.
Accepted on: 25 October 2004.
___________________Journal of Applied Geodesy---WALTER DE GRUYTER GMBH