Pacelli, Eugenio to Gasparri, Pietro from 19 May 1925, in: 'Kritische Online-Edition der Nuntiaturberichte Eugenio Pacellis (1917-1929)', document no. 18824, URL: www.pacelli-edition.de/en/Document/18824. Last access: 17-07-2024.Online since 24-06-2016.