Submitted on: 29 July 2019.
Revised on: 11 November 2019.
Accepted on: 07 January 2020.
___________________JOURNAL OF GRAPH THEORY---WILEY
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Submitted on: 27 March 2021.
Revised on: 19 April 2021.
Accepted on: 12 May 2021.
___________________JOURNAL OF GRAPH THEORY---WILEY
Submitted on: 30 June 2012.
Revised on: 12 August 2012.
Accepted on: 24 August 2012.
___________________JOURNAL OF GRAPH THEORY---WILEY
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Submitted on: 21 January 2004.
Revised on: 27 March 2004.
Accepted on: 12 May 2004.
___________________JOURNAL OF GRAPH THEORY---WILEY
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Submitted on: 04 July 1998.
Revised on: 15 October 1998.
Accepted on: 01 November 1998.
___________________JOURNAL OF GRAPH THEORY---WILEY
Submitted on: 02 October 2000.
Revised on: 31 December 2000.
Accepted on: 24 January 2001.
___________________JOURNAL OF GRAPH THEORY---WILEY