Revista Temas de Derecho Constitucional

339 La cuestión preliminar del TJUE sobre la revocatoria del brexit: fortaleciendo el derecho constitucional de la unión europea. -K. Ziegler, The Relationship between EU Law and International Law, in D. Patterson, A. Soderston (eds.), A Companion to EU and International Law (Wiley-Blackwell, 2016) 42-61 University of Leicester School of Law Research Paper No. 15-04. -Judgments of 20 September 2001, Grzelczyk, C 184/99, EU:C:2001:458, paragraph 31; of 19 October 2004, Zhu and Chen, C 200/02, EU:C:2004:639, paragraph 25; and of 2 March 2010, Rottmann, C 135/08, EU:C:2010:104, paragraph 43. -European Union (Notification of Withdrawal) Act 2017.