Sevilla Duro, Miguel Ángel. “The Bottom-up Participation of länder and Autonomous Communities in the European Union”. Revista Jurídica Universidad Autónoma de Madrid, no. 44 (November 25, 2021): 69–93. Accessed September 11, 2025. https://revistas-new.uam.es/revistajuridica/article/view/14902.