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Submitted on: 13 June 2006.
Revised on: 08 September 2006.
Accepted on: 10 October 2006.
___________________Beton- und Stahlbetonbau---ERNST & SOHN
Submitted on: 02 August 2005.
Revised on: 26 November 2005.
Accepted on: 24 January 2006.
___________________Beton- und Stahlbetonbau---ERNST & SOHN
Submitted on: 08 January 2018.
Revised on: 17 April 2018.
Accepted on: 15 May 2018.
___________________Beton- und Stahlbetonbau---ERNST & SOHN