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Credoanonymous SourcesNürnberg: Staatsbibliothek, Fragment lat. 9a, fol. 1r; Stadtbibliothek, fragment lat. 9a (olim Centurio III, 25), fol. 1r.EditionsFrench Sacred Music, edited by Giulio Cattin and Francesco Facchin, Monaco: Editions de l'Oiseau Lyre, 1992: Polyphonic Music of the Fourteenth Century Vol XXIIIB, p. 425.   | 
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