http://reply.papertrans.cn/1/55/5417/5417-21.png
Submitted on: 01 October 1999.
Revised on: 19 January 2000.
Accepted on: 05 February 2000.
___________________Cinta de Moebio---UNIV CHILE, FAC CIENCIAS SOCIALES
Submitted on: 10 October 2000.
Revised on: 06 January 2001.
Accepted on: 16 February 2001.
___________________Cinta de Moebio---UNIV CHILE, FAC CIENCIAS SOCIALES
http://reply.papertrans.cn/1/55/5417/5417-24.png
Submitted on: 26 August 2014.
Revised on: 31 October 2014.
Accepted on: 09 December 2014.
___________________Cinta de Moebio---UNIV CHILE, FAC CIENCIAS SOCIALES
Submitted on: 05 January 1999.
Revised on: 04 April 1999.
Accepted on: 07 May 1999.
___________________Cinta de Moebio---UNIV CHILE, FAC CIENCIAS SOCIALES
http://reply.papertrans.cn/1/55/5417/5417-27.png
Submitted on: 22 July 2002.
Revised on: 15 September 2002.
Accepted on: 01 October 2002.
___________________Cinta de Moebio---UNIV CHILE, FAC CIENCIAS SOCIALES
Submitted on: 05 October 2002.
Revised on: 14 November 2002.
Accepted on: 27 December 2002.
___________________Cinta de Moebio---UNIV CHILE, FAC CIENCIAS SOCIALES
Submitted on: 13 May 2014.
Revised on: 08 July 2014.
Accepted on: 15 August 2014.
___________________Cinta de Moebio---UNIV CHILE, FAC CIENCIAS SOCIALES