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We are aiming to convert the Max Planck Encyclopedias of International Law from paid subscription to a subscribe to open model. Visit the announcement page to find out more.

 

The Max Planck Encyclopedias of International Law

Welcome to the home of the most trusted reference work in international law, the Max Planck Encyclopedia of Public International Law, as well as the recently launched Max Planck Encyclopedia of International Procedural Law. The two Encyclopedias can be searched and browsed together, or separately by using appropriate filters. Find out more about the Encyclopedias and their teams by following the links on this page.


Article collection for 19th Annual Conference of the European Society of International Law

As part of OUP’s showcase for the 19th Annual Conference of the European Society of International Law, a collection of articles from the Max Planck Encyclopedia of Public International Law has been made freely available for you to explore.

Explore and access the articles included.


 

Site News

November 15, 2024

MPEPIL November 2024 Update

One updated article is now available on the Max Planck Encyclopedia of Public International Law.

November 11, 2024

Open Access and the Max Planck Encyclopedias of International Law

We are excited to share that we are aiming to convert the Max Planck Encyclopedias of International Law from paid subscription to a subscribe to open model.

October 29, 2024

MPEiPro October 2024 Update

Two new and one updated articles are now available on the Max Planck Encyclopedia of International Procedural Law.

September 30, 2024

MPEiPro September 2024 Update

Six new articles have been added to the Max Planck Encyclopedia of International Procedural Law.

Latest Content

Boundaries

Eirik Bjorge, Mamadou Hébié