Submitted on: 12 February 1998.
Revised on: 04 June 1998.
Accepted on: 30 June 1998.
___________________International Journal of E-Planning Research
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Submitted on: 06 December 2003.
Revised on: 11 January 2004.
Accepted on: 13 February 2004.
___________________International Journal of E-Planning Research
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