https://edition.cnn.com/2025/08/05/politics/gerrymandering-explained-legal
https://www.documentcloud.org/documents/5955249-Report.html
https://pes.eu/wp-content/uploads/2024/03/2024_PES_Manifesto_EN.pdf
https://theconversation.com/ampliacion-o-profundizacion-de-la-union-europea-227125