Submitted on: 27 July 1998.
Revised on: 19 August 1998.
Accepted on: 26 August 1998.
Theoretical Biology Forum
Submitted on: 23 January 2012.
Revised on: 03 February 2012.
Accepted on: 26 February 2012.
Theoretical Biology Forum
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Submitted on: 14 July 2015.
Revised on: 29 July 2015.
Accepted on: 22 August 2015.
Theoretical Biology Forum
Submitted on: 16 April 2004.
Revised on: 30 April 2004.
Accepted on: 14 May 2004.
Theoretical Biology Forum---FABRIZIO SERRA EDITORE
Submitted on: 06 May 2019.
Revised on: 18 June 2019.
Accepted on: 16 July 2019.
Theoretical Biology Forum---FABRIZIO SERRA EDITORE
Submitted on: 01 February 2004.
Revised on: 26 February 2004.
Accepted on: 06 March 2004.
Theoretical Biology Forum
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Submitted on: 18 January 2003.
Revised on: 02 February 2003.
Accepted on: 19 February 2003.
Theoretical Biology Forum
Submitted on: 26 May 2018.
Revised on: 27 June 2018.
Accepted on: 24 July 2018.
Theoretical Biology Forum