US-U, Renaissance Archives Champaign-Urbana - University of Illinois - School of Music - Renaissance Archives [US-U] BrusBR 5557
Wegman 1987b Rob C. Wegman, 'The Twelfth Gathering of Brussels, Koninklijke Bibliotheek, Manuscript 5557. A New Dufay Concordance', in Liber Amicorum Chris Maas. Essays in Musicology in Honour of Chris Maas on his 65th Anniversary, eds. Rob C. Wegman and Eddie Vetter (Amsterdam, 1987), 15-25.
