Submitted on: 23 December 2012.
Revised on: 06 February 2013.
Accepted on: 18 February 2013.
___________________Bulletin of Engineering Geology and the Environment
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Submitted on: 13 May 2017.
Revised on: 28 June 2017.
Accepted on: 25 August 2017.
___________________Bulletin of Engineering Geology and the Environment
Submitted on: 04 September 2012.
Revised on: 22 October 2012.
Accepted on: 21 November 2012.
___________________Bulletin of Engineering Geology and the Environment