RT Article T1 Otium and negotium within the one church JF Augustiniana VO 51 IS 1/2 SP 105 OP 149 A1 Bruning, Bernard 1943- LA English PB Peeters YR 2001 UL https://www.ixtheo.de/Record/1641679735 K1 Augustinus, Aurelius : Heiliger : 354-430 : De opere monachorum