Reference resources are dictionaries, encyclopedias, handbooks, and guides. Start here when you need a quick definition of a particular IR theory (realism, etc.).
Here are some suggestions of highly regarded scholarly journals in IR. The links here will take you to the journal record in the library's "classic" catalog. From here you can choose the online provider with the appropriate date range.
For more assistance, see the guide to finding articles in International Relations.
Don't see what you need?
Contact the librarian for International Relations, Steve Staninger.