Submitted on: 01 October 1999.
Revised on: 07 November 1999.
Accepted on: 01 December 1999.
NULL
Submitted on: 16 October 2001.
Revised on: 16 November 2001.
Accepted on: 09 December 2001.
Revista Facultad de Ingenieria-Universidad de Antioquia
http://reply.papertrans.cn/3/270/26957/26957-13.png
Submitted on: 18 February 2012.
Revised on: 15 March 2012.
Accepted on: 27 March 2012.
NULL
Submitted on: 27 July 2011.
Revised on: 12 August 2011.
Accepted on: 21 August 2011.
Revista Facultad de Ingenieria-Universidad de Antioquia
Submitted on: 06 May 1999.
Revised on: 14 June 1999.
Accepted on: 02 July 1999.
NULL
Submitted on: 23 May 1999.
Revised on: 20 June 1999.
Accepted on: 25 June 1999.
Revista Facultad de Ingenieria-Universidad de Antioquia
http://reply.papertrans.cn/3/270/26957/26957-18.png
Submitted on: 27 August 2021.
Revised on: 25 September 2021.
Accepted on: 18 October 2021.
NULL
http://reply.papertrans.cn/3/270/26957/26957-20.png