Pérez Martín, L. A. “Concretion of the Habitual Residence of Spouses in European Marriage Crisis, Episode 1: Still Living Between Several States, There Is Only One Habitual Residence”. CUADERNOS DE DERECHO TRANSNACIONAL, Vol. 14, no. 1, Mar. 2022, pp. 422-43, doi:10.20318/cdt.2022.6692.