Omnibus laws do not breach the principle of legal certainty per se. Indirect unconstitutionality on the grounds of basic State legislation infringement: Commentary on Constitutional Court’s Judgement 161/2019, of December 12, on appeal of unconstitutionality 878/2019 (BOE num. 10, of January 11, 2020). RCG [Internet]. 2020 Jun. 12 [cited 2026 Sep. 15];(108):377-96. Available from: https://revista.cortesgenerales.es/rcg/article/view/1497