Paris, Editions de la Réunion des musées nationaux, 1978, in-8°, 374+(1) pp, ca 200 ills., list of exhibitions, full bibl., stiff paper wrapper. Publ. on the occasion of an exhibition at the Grand Palais, 3 Oct. 1978-8 Jan. 1979, which did not distinguish the 3 brothers. Related painters were shown as well. Text in French. Texte en français.