Submitted on: 15 July 2001.
Revised on: 05 August 2001.
Accepted on: 18 August 2001.
Stochastics-An International Journal of Probability and Stochastic Processes
Submitted on: 12 December 1999.
Revised on: 06 January 2000.
Accepted on: 17 January 2000.
Stochastics-An International Journal of Probability and Stochastic Processes
http://reply.papertrans.cn/3/288/28704/28704-23.png
Submitted on: 06 May 2010.
Revised on: 30 May 2010.
Accepted on: 16 June 2010.
Stochastics-An International Journal of Probability and Stochastic Processes
Submitted on: 26 June 2015.
Revised on: 30 July 2015.
Accepted on: 25 August 2015.
Stochastics-An International Journal of Probability and Stochastic Processes
http://reply.papertrans.cn/3/288/28704/28704-26.png
Submitted on: 31 January 2017.
Revised on: 15 February 2017.
Accepted on: 05 March 2017.
Stochastics-An International Journal of Probability and Stochastic Processes
Submitted on: 12 May 2019.
Revised on: 15 June 2019.
Accepted on: 03 July 2019.
Stochastics-An International Journal of Probability and Stochastic Processes
Submitted on: 20 June 1999.
Revised on: 05 July 1999.
Accepted on: 19 July 1999.
Stochastics-An International Journal of Probability and Stochastic Processes
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