"International Journal of Nonlinear Sciences and Numerical Simulation", 6.4 (2005): 335-446. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/ijnsns.2005.6.4/issue-files/ijnsns.2005.6.4.xml

International Journal of Nonlinear Sciences and Numerical Simulation (2005), 6(4), pp. 335-446. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/ijnsns.2005.6.4/issue-files/ijnsns.2005.6.4.xml

International Journal of Nonlinear Sciences and Numerical Simulation. 2005. 6(4): 335-446. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/ijnsns.2005.6.4/issue-files/ijnsns.2005.6.4.xml