Source: PL-WRu I F 413 Cistercian Gradual (Silesia)Folio: 031vSequence: 3Feast: Fer. 4 Hebd. 2 Quad.Office: MASSGenre: ComCantus ID: g00739Mode: 5Full text: Justus dominus et justitias dilexit aequitatem vidit vultus ejus