Article 26 — Pacta sunt servanda. See Principles and Concepts of General Public International Law, Good faith — Pacta sunt servanda (P.3.1)

 
Article 28 — Non-retroactivity of treaties. See Principles and Concepts of General Public International Law, No retroactive application of treaties (P.3.4); Temporal Application of Rights and Obligations (T.5)

 
Article 31. See Interpretation, General rules of treaty interpretation — Article 31 of the Vienna Convention (I.3.1)

 
Article 32. See Interpretation, Supplementary means of interpretation — Article 32 of the Vienna Convention (I.3.10)

 
Article 33. See Interpretion, Multiple authentic languages — Article 33 of the Vienna Convention (I.3.11)

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