Article 38 of the ICJ Statutes lists the writings of international law scholars as the last source of international law.
However, these works can be very useful to a beginning researcher. On this page, we've listed a few starting points for international law treatises and journal articles.
Search for treatises by using the LRC Catalog. Search by keyword, title, subject, or author.
If you are searching for a specific journal article, search the catalog by journal title (not the article title) using the same link above.
International Legal Research in a Nutshell by 
Encyclopedia of Public International Law Consolidated Edition by 
Parry and Grant Encyclopaedic Dictionary of International Law by The Legal Research Center subscribes to a variety of full-text journal databases that you can search by keyword, author, date, etc.
