A link to an article in ScienceDirect will open a web page (HTML). On the webpage on the upper left hand side and just below the “Article”, “Figures/Tables”, “References”, “PDF” tabs, there is a hyperlink, Right click on the link; go to Properties (at bottom); copy and paste the address: The URL will take the user to the webpage where the PDF is available.
http://doi.10.1016/j.2009.09.006