"When you use the Button, it'll either take you straight to a free copy of the research article or help you ask the author to freely share the article with you."
Click on "Get The Extension" and follow the instructions to download.
Once the extension is installed
a lock icon will appear in the upper right side of the page when you encounter journal content
If the article is open access, the icon will change to an unlocked green button. You can click on the unlock button and access an open access version of the article.
If the article is not available through open access, the icon will change to locked gray button. The article is not available through open access.
If it is not available ou can manually request the article through Interlibray Loan.