
https://www.thelancet.com/pdfs/journals/lancet/PIIS0140-6736(20)32290-X.pdf

http://www.ips-journal.eu/regions/europe/article/show/europes-values-wont-defend-themselves-2599/

https://theconversation.com/del-mundo-de-ayer-a-la-europa-del-manana-la-utopia-de-stefan-zweig-231524