Anderson, Gordon Athol, 1929-1981.2007-09-082007-09-0819761976http://hdl.handle.net/2440/384673v. :Title page, contents and abstract only. The complete thesis in print form is available from the University Library.291969 bytesapplication/pdfenWolfenbuttel. Herzog-August-Bibliothek. Ms. Helmstad 1099 (1206)Motet.The development of the motet in the thirteenth century.Thesis