Literature
M. Raynal, Picasso, Paris, 1922 (another cast illustrated, pl. 58; dated 1905).
W. Spies, Sculpture by Picasso, with a Catalogue of the Works, New York, 1971, pp. 18-19 and 301, no. 8 (copper version illustrated, p. 273).
R. Johnson, The Early Sculpture of Picasso, 1901-1914, New York, 1976, no. 9 (other casts illustrated, p. 212, nos. 47-48).
W. Spies, Picasso, Das Plastische Werk, Stuttgart, 1983, p. 372, no. 8 (copper version illustrated, p. 326).
W. Spies, Picasso, The Sculptures, Stuttgart, 2000, p. 394, no. 8 (copper version illustrated, p. 346).
The Picasso Project, ed., Picasso's Paintings, Watercolors, Drawings and Sculpture, The Rose Period, 1905-1906, San Francisco, 2012, p. 320, no. 1906-522 (original copper version and another cast illustrated).