Calamo SpecchiaM. 2022. Hearing of Prof. Marina Calamo Specchia Constitutional Affairs Committee of the Senate of the Republic, December 7, 2021, 16.00 hours. Ddl 2463 (Conversion D.L. 172/2021 - Vaccination requirements and strengthening green certifications Covid-19). Diritto Pubblico Europeo. Rassegna on-line. 17, 1 (Jan. 2022). DOI:https://doi.org/10.6093/2421-0528/8885.