Pacelli, Eugenio to Gasparri, Pietro from 24 June 1920, in: 'Kritische Online-Edition der Nuntiaturberichte Eugenio Pacellis (1917-1929)', document no. 15821, URL: www.pacelli-edition.de/en/Document/15821. Last access: 29-06-2024.Online since 10-03-2014.