
http://www.progressives-zentrum.org/wp-content/uploads/2018/03/The-Future-of-the-Visegrad-Group_2018_ebook.pdf

https://www.opendemocracy.net/can-europe-make-it/albena-azmanova-barbara-spinelli-co-signatories/la-defensa-del-estado-de-derecho-

https://www.bloomberg.com/news/articles/2018-06-27/as-merkel-s-power-drains-the-threat-to-europe-grows?utm_medium=email&utm_source=newsletter&utm_term=180627&utm_campaign=bop