Treaties — Effect on Third Parties — Interpretation by Some of the Signatories — Effect on Other Signatories.

Treaties — Termination of — Change in Conditions — Adaptation of the Treaty to New Conditions.

Treaties — Interpretation of — Interpretation and Modification of Treaties — Modification by virtue of Authorisation Expressed in the Treaty.

Treaties — Forms of — Power to Conclude Administrative Agreements — Treaty Obligations Created by Declarations — Modification of Treaty by Subsequent Declarations — Amendment of Treaty Distinguished from Completion of Treaty — Admissibility of Separate Understandings between Some of the Contracting Parties — Rights and Interests of Third Parties.