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Submitted on: 06 February 2001.
Revised on: 14 March 2001.
Accepted on: 12 May 2001.
___________________Electronic Journal of Graph Theory and Applications
Submitted on: 01 September 2012.
Revised on: 05 December 2012.
Accepted on: 17 January 2013.
___________________Electronic Journal of Graph Theory and Applications
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Submitted on: 23 March 2011.
Revised on: 11 May 2011.
Accepted on: 22 May 2011.
___________________Electronic Journal of Graph Theory and Applications
Submitted on: 15 August 2017.
Revised on: 24 November 2017.
Accepted on: 08 January 2018.
___________________Electronic Journal of Graph Theory and Applications
Submitted on: 02 June 2011.
Revised on: 23 July 2011.
Accepted on: 16 August 2011.
___________________Electronic Journal of Graph Theory and Applications
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Submitted on: 15 December 2024.
Revised on: 06 April 2025.
Accepted on: 01 May 2025.
___________________Electronic Journal of Graph Theory and Applications
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