Submitted on: 31 October 2018.
Revised on: 18 January 2019.
Accepted on: 12 March 2019.
___________________Archives of Civil Engineering---POLISH ACAD SCIENCES
Submitted on: 29 May 2024.
Revised on: 14 August 2024.
Accepted on: 25 August 2024.
___________________Archives of Civil Engineering---POLISH ACAD SCIENCES
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Submitted on: 17 September 2005.
Revised on: 15 November 2005.
Accepted on: 18 December 2005.
___________________Archives of Civil Engineering---POLISH ACAD SCIENCES
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Submitted on: 22 June 2016.
Revised on: 14 July 2016.
Accepted on: 09 August 2016.
___________________Archives of Civil Engineering---POLISH ACAD SCIENCES