@Book{277297915, author="Berger, Anna Maria Busse", title="Mensuration and proportion signs: origins and evolution", series="Oxford monographs on music", year="1993", publisher="Clarendon Press", address="Oxford [u.a.]", keywords="Music; Mensural notation; Music theory; History; 500-1400; 15th century; 16th century; Aesthetics, Modern", note="Anna Maria Busse Berger", note="Includes bibliographical references and index", isbn="0198162308", language="English" }