Mann, Vivian B; Glick, Thomas F, and Dodds, Jerrilynn D.
Marks, Richard and Williamson, Paul (eds)
Metropolitan Museum of Art
Ministerio de Cultura
Musée National du Moyen Age
Oeser, Marc, and Oeser, Francis
Opper, Thorsten
Paris, Musée du Louvre
REBIUN : Red de Bibliotecas Universitarias
Royal Academy of Arts, and Pierpont Morgan Library