0 ENCYCLICAL OF POPE PIUS XII ON PRAYERS FOR THE PERSECUTED CHURCH TO THE VENERABLE BRETHREN, THE PATRIARCHS, PRIMATES, ARCHBISHOPS, BISHIOPS, AND OTHER LOCAL ORDINARIES IN PEACE AND COMMUNION WITH THE APOSTOLIC SEE Venerable Brethren, Greetings and Apostolic Benediction.
Source: Meminisse Iuvat (Vatican.va)