https://www.nao.org.uk/wp-content/uploads/2018/01/PFI-and-PF2.pdf
https://www.transcrime.it/wp-content/uploads/2021/09/Datacros_report.pdf
https://www.yahoo.com/news/germanys-merkel-suggests-rethink-eu-competition-policy-105518608.html
https://arxiv.org/pdf/2303.03371.pdf