Leszczyna, Dorota. “Nicolai Hartmann and José Ortega Y Gasset: An Overview of an Intellectual Relationship Based on the Correspondence of Two Philosophers from 1907–1912”. Diametros 19, no. 75 (March 25, 2023): 1–16. Accessed May 4, 2024. https://diametros.uj.edu.pl/diametros/article/view/1816.