“Use of Non-Official Spanish Languages in Regional Parliaments: Commentary on the Constitutional Court Judgment 75 2021, of March 18, Concerning Appeal of Unconstitutionality Num. 4911-2020. (BOE Num. 97, of April 23, 2021)”. Journal of the Cortes Generales, no. 110 (June 30, 2021): 499–508. Accessed September 15, 2026. https://revista.cortesgenerales.es/rcg/article/view/1586.