Abdounur, Oscar João Department Structural Changes in Systems of Knowledge, Max Planck Institute for the History of Science, Max Planck Society;
Abdounur, O. J. (2008). Ratios and music in the late Middle Ages: a preliminary survey. In P. Vendrix (Ed.), Music and mathematics in late medieval and early modern Europe (pp. 23-69). Turnhout: Brepols.