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Waite, William G. (1973) [1954]. The rhythm of twelfth-century polyphony: its theory and practice. Léonin. Westport, Conn.: Greenwood Press. ISBN0-8371-6815-5. OCLC622500.
Le Magnus liber organi de Notre-Dame de Paris. Roesner, Edward H. Monaco: Editions de l'Oiseau-Lyre. 1993. ISBN2-87855-000-5. OCLC17699186.{{cite book}}: CS1 maint: others (link)