RT Article T1 Lex orandi, lex credendi: traces of the Fathers of the Church and the Councils in the liturgy JF I Padri e le scuole teologiche nei concili SP 289 OP 306 A1 Bermejo, Antonio Elizer B. LA English PB Libreria Editrice Vaticana YR 2006 UL https://www.ixtheo.de/Record/1536149470 SN 8820978415