https://www.occrp.org/en/investigations/hungarys-fidesz-party-paid-eu-official-during-investigation
http://ecipe.org/app/uploads/2018/04/DTRI-final1.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/638957/Confidentiality_and_access_to_documents_Position_Paper.pdf
https://ecipe.org/wp-content/uploads/2021/04/ECI_21_PolicyBrief_06_2021_LY07.pdf