1. Aust, A. 2000. Modern Treaty Law and Practice. Cambridge University Press.
2. Barausova, V. 2021. Re review of constitutionality of the treaty between Russian Federation and the Republic of Crimea on the accession of the Republic of Crimea to the Russian Federation and on forming new constituent entities within the Russian Federation that has not entered into legal force (Judgement No 6-P/2014), Russian Federation, Constitutional Court, 19 March 2014. International Law Reports 195: 375–386.
3. Brownlie, I. 1998. The Rule of Law in International Affairs: International Law at the Fiftieth Anniversary of the United Nations. Martinus Nijhoff Publishers.
4. Ciampi, A. 2011. Invalidity and termination of treaties and rules of procedure. In The Law of Treaties beyond the Vienna Convention, ed. E. Cannizzaro, 360–377. Oxford University Press.
5. Corten, O. 2011. 1969 Vienna convention, Article 52, coercion of a state by the threat or use of force. In The Vienna Conventions on the Law of Treaties: A Commentary, vol. 2, ed. O. Corten, and P. Klein, 1201–1223. Oxford University Press.