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Submitted on: 26 August 2017.
Revised on: 20 September 2017.
Accepted on: 02 November 2017.
___________________International Journal of Critical Infrastructures
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Submitted on: 21 November 2003.
Revised on: 14 February 2004.
Accepted on: 22 March 2004.
___________________International Journal of Critical Infrastructures
Submitted on: 16 April 2020.
Revised on: 24 June 2020.
Accepted on: 10 July 2020.
___________________International Journal of Critical Infrastructures
Submitted on: 06 February 2020.
Revised on: 08 April 2020.
Accepted on: 23 April 2020.
___________________International Journal of Critical Infrastructures
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