Asturian in Asturias in Spain. Database for the European Charter for Regional or Minority Languages. Public Foundation for European Comparative Minority Research. [19 June 2013]. (原始内容存档于2013年4月26日).
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Asturian in Asturias in Spain. Database for the European Charter for Regional or Minority Languages. Public Foundation for European Comparative Minority Research. [19 June 2013]. (原始内容存档于2013年4月26日).