RT Article T1 Sub tuum praesidium: the "Theotokos" in Christian life and worship before Ephesus JF The place of Christ in liturgical prayer SP 243 OP 267 A1 Johnson, Maxwell E. 1952- LA English PB Liturgical Press YR 2008 UL https://ixtheo.de/Record/1537691503 SN 9780814660188