International Law: General Sources: Teachings of the most highly qualified publicists

Some books, articles and commentary by experts might be deemed to be "the teachings of the most highly qualified publicists. For a discussion of factors that might be used for making this determination, see, e.g., 

• Kuehl & O'Brien, International Legal Research in a Global Community, at 93-96.
• Sivakumaran, The Influence of Teachings of Publicists on the Development of International Law, 66 International and Comparative Law Quarterly 1 (2017)
• Helmerson, Finding “the Most Highly Qualified Publicists”: Lessons from the International Court of Justice, 30 European Journal of International Law 509 (2019)

For selected writings and to find others, see 
Getting started--classics, etc. 
Books, Ebooks, Working papers, etc. 
Law reviews, journals, articles
Expert & scholarly organizations