http://reply.papertrans.cn/3/275/27421/27421-11.png
Submitted on: 14 November 2022.
Revised on: 01 December 2022.
Accepted on: 07 December 2022.
NULL
http://reply.papertrans.cn/3/275/27421/27421-13.png
Submitted on: 13 October 2002.
Revised on: 29 October 2002.
Accepted on: 23 November 2002.
SaberEs---UNIV NACL ROSARIO, FAC CIENCIAS ECONOMICAS & ESTADISTICA
Submitted on: 30 April 2015.
Revised on: 18 May 2015.
Accepted on: 31 May 2015.
NULL
Submitted on: 17 September 2012.
Revised on: 26 October 2012.
Accepted on: 23 November 2012.
SaberEs---UNIV NACL ROSARIO, FAC CIENCIAS ECONOMICAS & ESTADISTICA
http://reply.papertrans.cn/3/275/27421/27421-17.png
Submitted on: 18 October 2008.
Revised on: 27 November 2008.
Accepted on: 23 December 2008.
NULL
http://reply.papertrans.cn/3/275/27421/27421-19.png
http://reply.papertrans.cn/3/275/27421/27421-20.png