Kroesen, J.E.A. and Schmidt, V.M. The Altar and its Environment, 1150-1400.

Turnhout, Brepols, 2009, V,(1),314p, num. (col.) ills., orig. wr., 4to.

Raggio, O. and Wilmering, A.M. The Gubbio Studiolo and its conservation. I. Frederico da Montefeltro's Palaca at Gubbio and its Studiolo. II. Italian Renaissance Intarsia and the conservation of the Gubbio Studiolo. New York, Metropolitan Museum of Art, 1999, 2 vols., X,222; X,262p., num. col. ills., orig. unif. cl. w. dustwr. in slipcase, 4to. - AND 3 others, i.a. A. HUYSMANS, Beeldhouwkunst van de Zuidelijke Nederlanden en het Prinsbisdom Luik, 15de en 16de eeuw (Brussels, 2000, num. col. fold. ills., orig. wr., 4to) and M. LEEFLANG and K. VAN SCHOOTEN (ed.), Middeleeuwse beelden uit Utrecht, 1430-1530 (Antwerp., 2012, num. col. ills., orig. wr., 4to).