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Submitted on: 03 April 2012.
Revised on: 13 May 2012.
Accepted on: 22 May 2012.
MOMENTO-Revista de Fisica---UNIV NACL COLOMBIA, FAC SCI
Submitted on: 27 July 2013.
Revised on: 06 September 2013.
Accepted on: 16 September 2013.
MOMENTO-Revista de Fisica---UNIV NACL COLOMBIA, FAC SCI
Submitted on: 08 August 2005.
Revised on: 31 August 2005.
Accepted on: 09 September 2005.
MOMENTO-Revista de Fisica
Submitted on: 19 November 2008.
Revised on: 25 December 2008.
Accepted on: 05 January 2009.
MOMENTO-Revista de Fisica---UNIV NACL COLOMBIA, FAC SCI
Submitted on: 06 August 2004.
Revised on: 08 September 2004.
Accepted on: 19 September 2004.
MOMENTO-Revista de Fisica
Submitted on: 18 February 2013.
Revised on: 26 March 2013.
Accepted on: 13 April 2013.
MOMENTO-Revista de Fisica
Submitted on: 10 October 2023.
Revised on: 22 October 2023.
Accepted on: 14 November 2023.
MOMENTO-Revista de Fisica---UNIV NACL COLOMBIA, FAC SCI
Submitted on: 17 October 1999.
Revised on: 29 November 1999.
Accepted on: 07 December 1999.
MOMENTO-Revista de Fisica