Source: PL-PŁsem MsEPl 15 Antyfonarz z Płocka, pars de sanctisFolio: 131rSequence: 2Feast: MichaelisOffice: LGenre: APosition: 4Cantus ID: 001399Mode: 8Differentia: G1Rubrics: Add. posteriori manu: quartaFull text: Angeli domini dominum benedicite in aeternum