The special agreement for immigrants and its impact on the determination of the regulatory basis in pensions calculated pro rata according to Regulation EC 883/2004. Comments on the Judgment of the Court of Justice of the European Union of 28 June 2018, Case C-2/17 Crespo Rey. (2019). Revista de Derecho de la Seguridad Social, Laborum, 18, 179-195. https://revista.laborum.es/index.php/revsegsoc/article/view/338