1. Baumann, Jens [2010]: Der Raum des Minderheitenschutzes. Parameter in Regionalwissenschaft und Regionalverwaltung, in: Vogt, Matthias Theodor et alii (Hrsg): Minderheiten als Mehrwert, Schriften des Collegium PONTES Band 6, Frankfurt a.M., S 319–380
2. Chambre des Deputes du Grand-Duche de Luxembourg [2011]: Dossiers thematiques: Un budget pour 2011 de «sortie de crise»
3. Council of Europe [2002]: Helsinki Declaration on Regional Self-Government, Meeting of the Ministers attending the 13th Session of the Conference of European Ministers Responsible for Local and Regional Government, Helsinki on 27–28 June 2002
4. Council of Europe [2008]: Congress of Local and Regional Authorities, Recommendation 240 (2008): Draft European Charter of Regional Democracy
5. Council of Europe [2010a]: Congress of Local and Regional Authorities, Recommendation 286 (2010): Minority languages - an asset for regional development, 18th Plenary Session 17–19 March 2010