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Submitted on: 03 July 2008.
Revised on: 24 September 2008.
Accepted on: 10 October 2008.
___________________Journal of Object Technology---JOURNAL OBJECT TECHNOLOGY
Submitted on: 10 April 2015.
Revised on: 06 June 2015.
Accepted on: 18 July 2015.
___________________Journal of Object Technology---JOURNAL OBJECT TECHNOLOGY
Submitted on: 06 August 2005.
Revised on: 30 November 2005.
Accepted on: 09 January 2006.
___________________Journal of Object Technology---JOURNAL OBJECT TECHNOLOGY
Submitted on: 12 November 2003.
Revised on: 01 February 2004.
Accepted on: 05 March 2004.
___________________Journal of Object Technology---JOURNAL OBJECT TECHNOLOGY
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