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Submitted on: 14 August 1999.
Revised on: 05 September 1999.
Accepted on: 20 September 1999.
___________________Journal of Computer Chemistry-Japan
Submitted on: 25 October 2003.
Revised on: 09 February 2004.
Accepted on: 05 April 2004.
___________________Journal of Computer Chemistry-Japan
Submitted on: 25 May 2013.
Revised on: 12 July 2013.
Accepted on: 10 September 2013.
___________________Journal of Computer Chemistry-Japan
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Submitted on: 15 March 2001.
Revised on: 16 May 2001.
Accepted on: 29 June 2001.
___________________Journal of Computer Chemistry-Japan
Submitted on: 13 July 2012.
Revised on: 20 October 2012.
Accepted on: 03 December 2012.
___________________Journal of Computer Chemistry-Japan
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