Source: PL-Wn 12496 IV Graduale cistercienseFolio: 018vSequence: 5Feast: Sabb. Hebd. 1 Quad.Office: MASSGenre: GrVCantus ID: g00711aMode: 5Full text: Domine refugium factus es nobis a generatione et progenieExternal image link: Image link