The EU in the 21st century: challenges and opportunities for the European Integration process / Guillermo A. Pérez Sánchez (ed. lit.) , David Ramiro Troitiño (ed. lit.), Tanel Kerikmae (ed. lit.), Ricardo Martín de la Guardia (aut.)
Springer Suiza, 2020. ISBN 978-3-030-38398-5