
https://www.ips-journal.eu/topics/future-of-social-democracy/where-is-italy-heading-5337/

https://theconversation.com/la-anomalia-empirica-de-las-elecciones-en-argentina-donde-dos-mas-dos-no-suman-cuatro-217319

http://visionofhumanity.org/app/uploads/2017/06/GPI17-Report.pdf