
https://www.destatis.de/DE/PresseService/Presse/Pressemitteilungen/2017/08/PD17_261_12511pdf.pdf?__blob=publicationFile

https://www.opendemocracy.net/uk/sunny-hundal/millionaire-is-planning-to-spend-around-700000-to-target-pro-remain-mps-at-election?utm_source=Daily+Ne

http://cadmus.eui.eu/bitstream/handle/1814/45187/Ebook_IntegrationMigrantsRefugees2017.pdf?sequence=3&isAllowed=y