[ARGENTER, Joan A.–Brown, R. McKenna (eds). 2004. Endangered Languages and Linguistic Rights: On the Margins of Nations. Proceedings, 8th FEL Conference, Barcelona.]Search in Google Scholar
[CALVET, Louis-Jean. 2011. Il était une fois 7000 langues. Paris.]Search in Google Scholar
[EXTRA, Guus–GORTER, Durk (eds). 2001. The Other Languages of Europe. Clevedon.]Search in Google Scholar
[FISHMAN, Joshua A. 1991. Reversing Language Shift. Clevedon.]Search in Google Scholar
[Gorter, Durk et al. (eds). 2012. Minority Languages in the Linguistic Landscape. London.10.1057/9780230360235]Search in Google Scholar
[MCCONAGLE, Tarach. 2013. Freedom of Expression of Minorities in the Digital Age: Staking Out a New Research Agenda. JEMIE Journal of Ethnopolitics and Minority Issues 12(4): 1–15.]Search in Google Scholar
[MOSELEY, Christopher. 2007. Encyclopedia of the World’s Endangered Languages. London.10.4324/9780203645659]Search in Google Scholar
[MULDER, Bertus. 1997. Fryske Taalpolityk. Boalsert.]Search in Google Scholar
[OSTLER, Nick. 2010. The Last Lingua Franca. English until the Return of Babel. London.]Search in Google Scholar
[SALVERDA, Reinier. 1998. Frisian. In: Glanville Price (ed.), Encyclopedia of the Languages of Europe, 177–184.]Search in Google Scholar
[Salverda, Reinier. 2006. Multilingual London and Its Literatures. In: Opticon 2006/1: 1–15. www.ucl.ac.uk/opticon1826/archive/issue1/VfPMultilingualLondonPDF.pdf.10.5334/opt.010603]Search in Google Scholar
[SPOLSKY, Bernard. 2009. Language Management. Cambridge.10.1017/CBO9780511626470]Search in Google Scholar
[VAN PARIJS, Philippe. 2011. Linguistic Justice for Europe and for the World. Oxford.10.1093/acprof:osobl/9780199208876.001.0001]Search in Google Scholar
[CIPL – Comité International Permanent de Linguistes (CIPL) – www.ciplnet.com]Search in Google Scholar
[CofE Charter – Council of Europe, European Charter for Regional Minority Languages. At: http://conventions.coe.int/treaty/en/Treaties/Html/148.htm]Search in Google Scholar
[ELDS – European Language Diversity Summit – www.linguapax.org/english/what-we-do/donostia-european-language-diversity-summit]Search in Google Scholar
[FEL – Foundation for Endangered Languages (FEL) – www.ogmios.org]Search in Google Scholar
[Mercator European Research Centre on Multilingualism and Language Learning – www.mercator-research.eu]Search in Google Scholar
[PEN International Writers Organization – www.pen-international.org]Search in Google Scholar
[TLA – The Language Archive (TLA) – https://tla.mpi.nl]Search in Google Scholar
[UNESCO Atlas of the World’s Languages in Danger – www.unesco.org]Search in Google Scholar
[WWF: Biocultural Diversity: Threatened Species, Endangered Languages – www.wwf.panda.org]Search in Google Scholar