https://www.bruegel.org/sites/default/files/2024-03/PB%2005%202024_2.pdf
https://www.brookings.edu/blog/order-from-chaos/2020/08/17/hard-road-back-to-power-for-germanys-social-democrats/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=93515734&utm_source=hs_email
https://www.bruegel.org/sites/default/files/2024-09/PB%2019%202024.pdf
https://theconversation.com/investidura-o-bloqueo-y-vuelta-a-las-urnas-a-que-se-va-a-enfrentar-espana-210241