https://www.lobbycontrol.de/lobbyregister/bundestag-beschliesst-verbessertes-lobbyregister-112080/
https://ukandeu.ac.uk/wp-content/uploads/2021/02/UK-regulation-after-Brexit.pdf?mc_cid=1d4cf56e72&mc_eid=815b1928ec
http://institutdelors.eu/wp-content/uploads/2018/03/Quelleambitionpourlautorit%C3%A9europ%C3%A9ennedutravail-Fernandes-mars18.pdf