Treaties, States Parties and Commentaries
Treaties and Documents
Geneva Conventions of 1949 and Additional Protocols, and their Commentaries
Historical Treaties and Documents
Convention on Maritime Neutrality. Havana, 20 February 1928.
Section IV : Fulfilment and observance of the laws of neutrality - Art. 28.
Art. 28. The present Convention does not affect obligations previously undertaken by the Contracting Parties through international agreements.