1. Arai, Y. (2001) The Margin of Appreciation Doctrine and the Principle of Proportionality in the Jurisprudence of the ECHR, Antwerp/Oxford/New York: Intersentia.
2. Bivolaru v. Romania, appl. no. 28796/04, Judgement of 28 February 2017.
3. Centrum för Rättvisa v. Sweden [GC], Application no. 35252/08, Judgement of 25 May 2021.
4. Communaute genevoise d'action syndicale (CGAS) v. Switzerland, appl. no. 21881/20, Judgement of 15 March 2022.
5. Cope, K., Stremitzer A., “Governments Are Constitutionally Permitted to Provide “Vaccine Passports”— Some May Also Be Constitutionally Obligated to Do So”, Journal of Nuclear Medicine, vol. 62(6), June 2021: 771-772, DOI: https://doi.org/10.2967/jnumed.121.262434.