Wright, Craig (Spring 1986). "Leoninus, Poet and Musician". Journal of the American Musicological Society. 39 (1): 8. doi:10.2307/831693. ISSN0003-0139. JSTOR831693.
Tanay, Dorit (1992). "The Transition from the Ars Antiqua to the Ars Nova: Evolution or Revolution?". Musica Disciplina. 46: 79–104. ISSN0077-2461. JSTOR20532360.
Wright, Craig (Spring 1986). "Leoninus, Poet and Musician". Journal of the American Musicological Society. 39 (1): 8. doi:10.2307/831693. ISSN0003-0139. JSTOR831693.
A., G. A. (April 1972). "Review of The Works of Perotin". Music & Letters. 53 (2). Oxford University Press: 225. ISSN0027-4224. JSTOR733642.
Tanay, Dorit (1992). "The Transition from the Ars Antiqua to the Ars Nova: Evolution or Revolution?". Musica Disciplina. 46: 79–104. ISSN0077-2461. JSTOR20532360.
Wright, Craig (Spring 1986). "Leoninus, Poet and Musician". Journal of the American Musicological Society. 39 (1): 8. doi:10.2307/831693. ISSN0003-0139. JSTOR831693.
A., G. A. (April 1972). "Review of The Works of Perotin". Music & Letters. 53 (2). Oxford University Press: 225. ISSN0027-4224. JSTOR733642.