“Application of section 155 of the Constitution to the self-governing community of Catalonia: Commentary on the Constitutional Court’s Judgments 89/2019 and 90/2019, of July 2, concerning the Appeals of Unconstitutionality nums. 5884-2017 and 143-2018. (BOE num. 192, of August 12, 2019)”, RCG, no. 107, pp. 507–519, Dec. 2019, doi: 10.33426/rcg/2019/107/1456.