https://www.parlament.cat/document/cataleg/48146.pdf
https://blogs.lse.ac.uk/europpblog/2022/10/25/continuity-and-change-after-latvias-2022-parliamentary-election/
https://blogs.lse.ac.uk/europpblog/2023/10/12/a-political-economy-model-forecast-of-the-2023-dutch-election/