Source: Graduale in usum chori ordinis Praemonstratensis StrahoviensisSiglum: CZ-Pst DF I 1Folios: 321r-322vFolio: 321rSequence: 1Full text (or incipit): Aeterni regis muneraGenre: SqRubrics: De sancto Norberto confessoreFeast: Norberti Episcopi, ConfessorisFeast (text): Norberti Episcopi, ConfessorisMCantus ID: ah34303Form: M