Useful websites Council of Europe, European Charter for Regional or Minority Languages https://www.coe.int/en/web/european-charter-regional-or-minority-languages Catalan, Belgian and Welsh Research Institutes, Euromosaic http://www.uoc.edu/euromosaic/web/homean/index1.html European Commission, Mercator European Research Centre on Multilingualism and Language Learning https://www.mercator-research.eu/en/ Organisation pour les minorités européennes, Eurominority http://eurominority.com/en/ Alliance for Linguistic Diversity, The Endangered languages Project http://www.endangeredlanguages.com/ Simons G.F. and Charles D. Fennig (eds.), 2017, Ethnologue: Languages of the World https://www.ethnologue.com/ UNESCO, Atlas of the World's Languages in Danger http://www.unesco.org/languages-atlas/