Becerril Atienza, B. 2019. Malhereusement impossible: The Relationship Between Ortega y Gasset and Caudenhove-Kalergi, Founder of the Pan-European Union. Revista de Estudios Orteguianos. 39 (Nov. 2019), 117–149. DOI:https://doi.org/10.63487/reo.201.