Submitted on: 05 January 2015.
Revised on: 05 April 2015.
Accepted on: 16 April 2015.
___________________European Actuarial Journal---SPRINGER HEIDELBERG
Submitted on: 26 February 2007.
Revised on: 05 April 2007.
Accepted on: 10 May 2007.
___________________European Actuarial Journal---SPRINGER HEIDELBERG
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Submitted on: 14 August 2001.
Revised on: 27 September 2001.
Accepted on: 10 October 2001.
___________________European Actuarial Journal---SPRINGER HEIDELBERG
Submitted on: 05 March 2016.
Revised on: 04 June 2016.
Accepted on: 19 July 2016.
___________________European Actuarial Journal---SPRINGER HEIDELBERG
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Submitted on: 28 October 2012.
Revised on: 02 January 2013.
Accepted on: 02 February 2013.
___________________European Actuarial Journal---SPRINGER HEIDELBERG
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