RT Article T1 The "ars celebrandi" of the liturgical congregation: some forgotten dimensions JF "Ars celebrandi" SP 35 OP 47 A1 Mattheeuws, Gino LA English PB Peeters YR 2002 UL https://ixtheo.de/Record/1536551724 SN 9042912111 SN 2877236803