[276].Keith Christiansen, Gentile da Fabriano (London, 1982) p.45.
[277].Paul Hills, The Light of Early Italian Painting (New Haven, CT, and London, 1987), p.126.
[278].James R. Banker, ‘The program for the Sassetta altarpiece in the church of S. Francesco in Borgo S. Sepolcro’, I Tatti Studies in the Italian Renaissance, vol. 4, 1991, pp.11——58, here p.12.
[279].Hyman, Sienese Painting, p.159.