Pope Gregory I dictating the gregorian chants
Antiphonary of Hartker, ca. 1000
Saint Gall. Cod. Sang. 390, f. 13.
El antifonario visigótico de León : estudio literario de sus fórmulas sálmicas
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Chanter avec les anges : poésie dans la messe médiévale, interprétations et commentaires
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Du chant romain au chant grégorien (IVe-XIIIe siècle)
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Montecassino e la riforma gregoriana : l'exultet Vat. Barb. lat. 592
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Chant and its peripheries : essays in honour of Terence Bailey
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Plainsong in the age of polyphony
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Theology and music at the early university: the case of Robert Grosseteste and Anonymous IV
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Music at Nevers Cathedral : principal sources of mediaeval chant
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