Ad extra and ad intra referral in Regulation 650/2012: the impact of Spanish interregional law on the digital content of international heritage. Cuad. derecho transnac. [Internet]. 2024 Oct. 14 [cited 2025 Dec. 5];16(2):1344-73. Available from: https://e-revistas.uc3m.es/index.php/CDT/article/view/8979