Submitted on: 16 August 1999.
Revised on: 11 October 1999.
Accepted on: 21 November 1999.
___________________INTERNATIONAL JOURNAL OF TECHNOLOGY MANAGEMENT
Submitted on: 11 October 2014.
Revised on: 23 November 2014.
Accepted on: 10 January 2015.
___________________INTERNATIONAL JOURNAL OF TECHNOLOGY MANAGEMENT
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