Include government documents, working papers, policy briefs, etc. as supplementary material to inform your research and to mine for clues as to studies done or statistics compiled.
Tip: Read the Summary to see what it covers before clicking through to the database.
Homeland Security Digital Library
government documents, research studies, CRS reports, GAO reports and testimony, theses and dissertations, case studies and grey literature
Tip: Search by keyword or browse by topic.
CIAO (Columbia International Affairs Online)
Journal articles, working papers, policy briefs, and books on international affairs
See also: International & Transnational Relations guide for more sources.
Build on existing scholarship about your topic; it is the best place to start.
Tips for identifying empirical and case studies:
Tips for using existing scholarship:
Google Scholar limits your results to academic resources.
tip: To get the link when using Google Scholar off campus, go to Scholar Settings and choose Duke from Library Links.
You can also set your preferred bibliography manager (Endnote, Refworks) in Scholar Settings for one-click citation export.
Tips for refining your search:
Click Advanced Search for more options.
Limit your results by date (to the left of results) to get the most recent few years. Current academic articles usually summarize previous research on the topic, and you can follow up on their cited references to see if they are appropriate for your bibliography.