Use Interlibrary Loan to retrieve journal articles, chapters or books from other libraries. Set up an ILLiad ILL account, using your Drew username and password, and track your request.
If you're looking for an item that seems to have been presented at a conference, try Google Scholar search, since authors will sometimes make their papers publicly available.
Questions? Need Help? Email firstname.lastname@example.org
Drew University Library, http://www.drew.edu/library