Europäische BürgerInnen-Initiativen
- European citizens’ initiative - Taxing great wealth to finance the ecological and social transition.
- 'Europäische Bürgerinitiative - European Citizen''s Initiative'
- Europäische Bürgerinitiative - Amtliches Register - Europäische Kommission
- 'European Citizens'' Initiative updated Edition - Green European Foundation'
- 'European Citizen''s Initiative Day 2013 - European Economic and Social Committee'
- C. Quittkat : Die Europäische Bürgerinitiative - Ein Hürdenlauf 9/13