http://reply.papertrans.cn/1/7/649/649-11.png
http://reply.papertrans.cn/1/7/649/649-12.png
http://reply.papertrans.cn/1/7/649/649-13.png
Submitted on: 01 February 2018.
Revised on: 12 May 2018.
Accepted on: 29 May 2018.
___________________ADVANCED NONLINEAR STUDIES---DE GRUYTER POLAND SP Z O O
Submitted on: 29 December 2000.
Revised on: 05 February 2001.
Accepted on: 01 April 2001.
___________________ADVANCED NONLINEAR STUDIES---DE GRUYTER POLAND SP Z O O
http://reply.papertrans.cn/1/7/649/649-16.png
http://reply.papertrans.cn/1/7/649/649-17.png
Submitted on: 15 July 1999.
Revised on: 07 November 1999.
Accepted on: 01 January 2000.
___________________ADVANCED NONLINEAR STUDIES---DE GRUYTER POLAND SP Z O O
Submitted on: 12 January 2020.
Revised on: 04 February 2020.
Accepted on: 15 March 2020.
___________________ADVANCED NONLINEAR STUDIES---DE GRUYTER POLAND SP Z O O
Submitted on: 30 September 2014.
Revised on: 11 December 2014.
Accepted on: 11 January 2015.
___________________ADVANCED NONLINEAR STUDIES---DE GRUYTER POLAND SP Z O O