G. L. Lampson, A Few Italian Pictures Collected by Godfrey Locker-Lampson, n.d. [c. 1938], pp. 18-19, no. VI (as Giovanni da Milano);
B. Berenson, Italian Pictures of the Renaissance: Florentine School, London 1963, I, p. 162 (as Niccolò di Tommaso');
M. Boskovits, Pittura fiorentina alla vigilia del Rinascimento: 1370-1400, Florence 1975, pp. 56, 336, reproduced plate 58;
R. Fremantle, Florentine Gothic Painters, from Giotto to Masaccio, London 1975, p. 412, no. 840;
D. Sutton, 'Robert Langton Douglas, Part IV,' in Apollo, CX, no. 209, July 1979, pp. 8, 12, reproduced fig. 20;
R. Offner, A Critical and Historical Corpus of Florentine Painting, Supplement: A Legacy of Attributions, New York 1981, pp. 41, 99, reproduced fig. 79;
M.S. Frinta, Punched Decoration on Late Medieval Panel and Miniature Painting: Part I, Catalogue Raisonné of All Punch Shapes, Prague 1998, p. 506.