On amicus curiae and the participation of trade unions in appeals of unconstitutionality: Commentary to Order of the Constitucional Court 125/2022, of September 29. Concerning the action of unconstitutionality num. 2191-2022. (2023). Journal of the Cortes Generales, 115, 453-492. https://doi.org/10.33426/rcg/2023/115/1761