The previous page is sending you to https://www.sciencedirect.com/science/article/pii/S0953756208602877/pdf?md5=4052e17fa68318d7a7c07f0c60a43e11&pid=1-s2.0-S0953756208602877-main.pdf&_valck=1.

 If you do not want to visit that page, you can return to the previous page.