Return decisions to third-country nationals illegally staying in Spain: consequences of the (alleged) incompatibility of Law 4/2000 with the Directive 2008/115 and the limits on the vertical direct effect of directives. (2021). CUADERNOS DE DERECHO TRANSNACIONAL, 13(1), 388-407. https://doi.org/10.20318/cdt.2021.5964