
https://www.bancaditalia.it/compiti/riserve-portafoglio-rischi/cis/Presentazione_CIS_5.07.2021.pdf?language_id=1

https://www.nao.org.uk/wp-content/uploads/2018/06/Investigation-into-the-governments-handling-of-the-collapse-of-Carillion.pdf

https://wiiw.ac.at/alternatives-in-the-design-of-sovereign-green-bonds-dlp-6412.pdf