Submitted on: 14 February 2013.
Revised on: 08 April 2013.
Accepted on: 08 May 2013.
___________________Bulletin of Engineering Geology and the Environment
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Submitted on: 26 June 2010.
Revised on: 09 October 2010.
Accepted on: 06 November 2010.
___________________Bulletin of Engineering Geology and the Environment
Submitted on: 28 February 2006.
Revised on: 09 June 2006.
Accepted on: 05 July 2006.
___________________Bulletin of Engineering Geology and the Environment
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Submitted on: 18 October 2004.
Revised on: 09 January 2005.
Accepted on: 02 February 2005.
___________________Bulletin of Engineering Geology and the Environment