Source: PL-WRu I F 416 Cistercian Gradual (Silesia)Folio: 031rSequence: 2Feast: Fer. 3 Hebd. 1 Quad.Office: MASSGenre: IntrCantus ID: g00696Mode: 5Full text: Domine refugium factus es nobis a generatione et progenie a saeculo et in saeculum tu es