Columbia University.
Available online.
The library has subscribed for several years to Columbia International Affairs Online (CIAO), a database of working papers, policy briefs, journal articles, course packs, and other materials from think tanks, research institutes, NGO's, and other sources. The latest monthly updates to the database include a complete book on North Korea, an East-West Institute paper on cooperation between the U.S. and Russia on nuclear terrorism, and a European Union Institute for Security Studies paper on issues relating to Turkey's acceptance into the EU.
Links are maintained in several locations in the library Web site, including here.