If you are being asked to write a literature review or historiography, you may find this matrix helpful.
Just like with books, there are several ways to find and access scholarly articles and dissertations. However, your best place to start is in Summon.
Although Summon is a great place to start, there are other database options - especially for history specific research.
Over a thousand full-text scholarly journals and books covering all subjects in the humanities, sciences and social sciences. History, economics, art, literature, and mathematics are particularly strong. All journal titles are archived back to the first issue, many dating from the early 1800s. JSTOR now also hosts the complete ArtSTOR collection.
Index to scholarly journal articles from international historical journals, covering the history of the world (excluding the United States and Canada) from 1450 to the present.
Index to scholarly articles covering topics such as history, music, literature, philosophy and religion.