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Language and languages -- History -- Congresses  [1]
Language and languages -- Variation  [1]
Language and languages -- Variation -- Congresses  [1]
Language ideology -- Congresses  [1]
Language maintenance  [1]
Language policy -- Congresses  [12]
Languages, Modern -- Congresses  [26]
Linguistic discrimination -- Congresses  [1]
Linguistic rights -- Congresses  [1]
Llengua estàndard -- Congressos  [16]
Llengua habitual -- Congressos  [1]
Llengua materna -- Congressos  [1]