"Studies in Nonlinear Dynamics & Econometrics", 13.2 (2009): -. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/snde.2009.13.2/issue-files/snde.2009.13.issue-2.xml

Studies in Nonlinear Dynamics & Econometrics (2009), 13(2), pp. -. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/snde.2009.13.2/issue-files/snde.2009.13.issue-2.xml

Studies in Nonlinear Dynamics & Econometrics. 2009. 13(2): -. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/snde.2009.13.2/issue-files/snde.2009.13.issue-2.xml