E. Villiger, Mark Keywords: Vienna Convention on the Law of Treaties (Vienna, 23 May 1969) | Legal history | International customary law | Law of treaties | Public international law | Mots clefs: Convention de Vienne sur le droit des traités (Vienne, 23 mai 1969) | Histoire du droit | Droit coutumier international | Droit des traités | Droit international public | ABSTRACT The 1969 Vienna Convention on the Law of Treaties, regulating treaties between States, lies at the heart of international law. This course analyses how the Convention has been applied by …

Dinstein, Yoram Keywords: Treaties | International customary law | Law of treaties | Mots clefs: Traités | Droit coutumier international | Droit des traités | ABSTRACT Yoram Dinstein, Professor emeritus of the University of Tel Aviv, reminds us that Article 38 of the Statute of the International Court of Justice prescribes three strata – often referred to as "sources" – of international law. This study is confined to the interaction between two of those strata, namely treaties and customs, and does not deal with the gene…

Bernhardt, Rudolf Keywords: International customary law | Law of the sea | Law of treaties | International law | Mots clefs: Droit coutumier international | Droit de la mer | Droit des traités | Droit international | ABSTRACT Rudolf Bernhardt, Director of the Max Planck Institute for Comparative Public Law and International Law in Heidelberg, notes that the combined play of custom and treaty, in the Law of the Sea, requires the consideration of general and theoretical elements and requires an attempt to link these general considerat…

Tomuschat, Christian Keywords: Obligations of the state | Law of treaties | Public international law | Legal principles | Mots clefs: Obligations des états | Droit des traités | Droit international public | Principes généraux du droit | ABSTRACT According to Christian Tomuschat, Professor at the University of Bonn, the place to be assigned to the will of States is crucial for the understanding of the international legal order. But though the will of States plays a considerable role in the appearance of obligations that are the States…