https://www.opendemocracy.net/en/can-europe-make-it/perception-and-politics-the-case-of-poland-coping-with-political-apparitions/
https://www.opendemocracy.net/can-europe-make-it/albena-azmanova-barbara-spinelli-co-signatories/la-defensa-del-estado-de-derecho-
https://www.ucl.ac.uk/european-institute/analysis/2016-17/poulsen-investment-policy