When you find an article listed in a research database, and the article is not immediately available to read, use the button to search Pace's periodical holdings. If you get a message that directs you to use the ILLiad Interlibrary Loan service to request a copy of the article, follow the appropriate link.
There may be other times you need to request an article or a book. Maybe you found a citation in the References of a paper you just read, or on Wikipedia, or in a footnote in a book. You may request anything through ILL, but just make sure you fill out the required fields (with an *) AND click Submit Request.