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Submitted on: 04 March 2001.
Revised on: 17 March 2001.
Accepted on: 27 March 2001.
Revista de la Construccion
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Submitted on: 12 May 2021.
Revised on: 07 June 2021.
Accepted on: 14 June 2021.
Revista de la Construccion---PONTIFICIA UNIV CATOLICA CHILE, ESCUELA CONSTRUCCION CIVIL
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