Your professor wants you to find articles for your paper. Many are available electronically depending on the date of the article. Some professors insist that you use "print" articles. For those, you need physical Current Periodicals located on the 2nd floor by the pretty reading room. Or request an article from the Bound Periodicals located in the Annex using the online library catalog. When citing electronic periodicals in databases, do NOT cite the database. Cite just as you would if you had the physical journal sitting in front of you.