Submitted on: 13 May 2024.
Revised on: 07 July 2024.
Accepted on: 21 August 2024.
___________________Comunicar---OXBRIDGE PUBLISHING HOUSE
Submitted on: 11 March 2016.
Revised on: 18 June 2016.
Accepted on: 07 August 2016.
___________________Comunicar---OXBRIDGE PUBLISHING HOUSE
Submitted on: 31 January 1998.
Revised on: 10 March 1998.
Accepted on: 01 May 1998.
___________________Comunicar---OXBRIDGE PUBLISHING HOUSE
http://reply.papertrans.cn/1/64/6324/6324-24.png
http://reply.papertrans.cn/1/64/6324/6324-25.png
http://reply.papertrans.cn/1/64/6324/6324-26.png
Submitted on: 11 November 2000.
Revised on: 09 March 2001.
Accepted on: 29 April 2001.
___________________Comunicar---OXBRIDGE PUBLISHING HOUSE
http://reply.papertrans.cn/1/64/6324/6324-28.png
Submitted on: 26 February 2013.
Revised on: 04 April 2013.
Accepted on: 25 May 2013.
___________________Comunicar---OXBRIDGE PUBLISHING HOUSE
http://reply.papertrans.cn/1/64/6324/6324-30.png