https://www.opendemocracy.net/democraciaabierta/bernardo-guti-rrez/madrid-un-laboratorio-democr-tico
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/831B39F76C7870B330052D852D598F98/9781108843126AR.pdf/Constitutional_Challenges_in_the_Algorithmic_Society.pdf?event-type=FTLA
http://www.pewresearch.org/fact-tank/2017/06/26/around-the-world-favorability-of-u-s-and-confidence-in-its-president-decline/
https://africanantifraud.com/2020/12/04/historiccorruption/