To find scholarly articles or studies, you will need to use a database (not CLIO). Scholarly journals are periodicals in which researchers publish articles on their work. Most often these articles discuss recent research. Journals also publish theoretical discussions and articles that critically review already published work. Scholarly journals are typically peer-reviewed journals.
On this page you will find a lot of options to start your research, but these are not all of the databases that you have access to as a Columbia University student! Explore the other research guides to find other databases for different disciplines, or make an appointment with a librarian.
General, interdisciplinary databases:
For Defense Research don't forget about these resources: