https://www.ombudsman.europa.eu/en/opening-summary/en/166783
https://www.nao.org.uk/wp-content/uploads/2018/01/PFI-and-PF2.pdf
https://ec.europa.eu/competition-policy/system/files/2022-01/internet-of-things_final_report_2022_en.pdf
https://ec.europa.eu/transparency/documents-register/detail?ref=C(2022)6536&lang=en