RT Article T1 Relative Norm of Fast: Historical Concept and Function JF The jurist VO 12 A1 Schmidt, John Rogg 1908- LA English YR 1952 UL https://ixtheo.de/Record/1650241712 K1 Katholische Kirche : Codex iuris canonici : 1917 : can. 1251 K1 Fasten