Source: PL-WRu I F 416 Cistercian Gradual (Silesia)Folio: 160vSequence: 2Feast: Assumptio MariaeOffice: MASSGenre: ComCantus ID: g01419Mode: 1TFull text: Beata viscera Mariae Virginis quae portaverunt aeterni Patris Filium alleluja