
https://assets.cambridge.org/97811084/80932/frontmatter/9781108480932_frontmatter.pdf

https://www.ipg-journal.de/regionen/global/artikel/detail/fatales-ungleichgewicht-4473/

https://www.nuffieldtrust.org.uk/news-item/privatisation-by-the-front-door-what-does-a-new-public-private-gp-model-mean