Papers is a reference manager / citation software built by the same company that built Anywhere Access (the company is called ReadCube / Digital Science). All DU students, faculty, and staff have free access to Papers through the DU Libraries.
Once you've installed the browser extension, you'll start seeing an "Add to Library" button on pages around the web -- click that button to start organizing references in your Papers library!
Pros: Papers is great at storing and organizing citations and article PDFs. It's easy to add items to your library, read & annotate articles online, and share folders with other Papers users.
Cons: Papers is still working on their "quick cite" feature, so you can't push a button to format a citation in anything other than APA. To format citations, install the SmartCite plug-in for Word -- this lets you import citations into your paper and format both in-text citations and your reference section in a variety of styles.
Have questions about how Papers works? Have citations in another reference manager (RefWorks, EndNote, Mendeley, Zotero, etc), that you'd like to transfer to Papers?
Check out the Papers Support Page, which you can always find in the app by clicking on the Papers icon/menu in the upper-left hand corner of your library: