The Ghent Altarpiece : : Research and Conservation of the Interior: The Lower Register / / Main authors Griet Steyaert, Marie Postec, Jana Sanyova, Hélène Dubois ; With observations, research and documents by Kathleen Froyen, Bart Devolder, Cécile de Boulard, Geert Van der Snickt, Koen Janssens, Frederik Vanmeert, Christina Currie, Catherine Fondaire, Hervé Pigeolet, ... (et al.).boek