“A new ECJ judgment about the concept of habitual residence in the framework of Regulation 2201/2003: judgment 17 October 2018, UD v. XB, C. 393/18”, Cuad. derecho transnac., vol. 11, no. 2, pp. 462–471, Oct. 2019, doi: 10.20318/cdt.2019.4972.