Autor/-in: Gerhard Lutz

Gerhard Lutz. is the Robert P. Bergman Curator of Medieval Art, the Cleveland Museum of Art. Elina Gertsman. is Archbishop Paul J. Hallinan Professor in Catholic Studies II, professor of Art History and director of Graduate Studies, Case Western Reserve University. Sophie Jugie. is directrice du département des Sculptures, Musée du Louvre. Wolfram Kloppmann. is isotope geochemist BRGM-Bureau de Recherches Géologiques et Minières, Orléans. Lise Leroux. is a conservation scientist, Laboratoire de recherche des monuments historiques Ministère de la culture, Champs-sur-Marne. Pierre-Yves Le Pogam. is conservateur général au département des Sculptures, Musée du Louvre. Stefan Roller. is head of the Medieval Department, Liebieghaus Skulpturensammlung, Frankfurt am Main.