Cross, Lucy E.
Cross, Lucy E. 1990. Chromatic Alteration and Extrahexachordal Intervals in Fourteenth-Century Polyphonic Repertories. Columbia University, PhD Dissertation.
Cross, Lucy E. 1990. Chromatic Alteration and Extrahexachordal Intervals in Fourteenth-Century Polyphonic Repertories. Columbia University, PhD Dissertation.