Les sources p. 65—Graduel-Tropaire-Séquentaire de l’abbaye de Saint-AlbanHiley, Sicily, 1981: p. 851, sequence repertoire I/10 (235-86), II/5 (541-57/70-81).
Elizabeth Cover Teviotdale. “The Cotton Troper (London, British Library, Cotton MS Caligula A.xiv, ff. 1-36): A Study of an Illustrated English Troper of the Eleventh Century.” Ph. D. diss. University of North Carolina at Chapel Hill, 1991.