R. Marx, 'Auguste Rodin', Pan, III [April 1897], p. 196. O. Grautoff, Auguste Rodin, Bielefeld and Leipzig,1908, p. 26. G. Grappe, Catalogue du Musée Rodin, Paris, 1927 [and subsequent editions], no. 103 (another cast illustrated). John L. Tanlock, The Sculpture of Auguste Rodin, Philadelphia, 1976, p. 610, illustrated on p. 611, fig. 111-117-1 (another cast illustrated). J. de Caso and P.B. Sanders, Rodin's Sculpture: A critical study of the Spreckels Collection, California Palace of the Legion of Honor, San Francisco, 1977, no. 33, pp. 190-193 (another cast illustrated). A. Beausire, Quand Rodin exposait, Paris, 1988, p. 181 (another cast illustrated). A. Le Normand-Romain (ed.), La sculpture dans l'espace. Rodin, Brancusi, Giacometti, exh. cat., Paris, Musée Rodin, 2005, pp. 65-66 (another cast illustrated). A. Le Normand-Romain et al.., The Bronzes of Rodin, catalogue of the works in the Musée Rodin, II, Paris, 2007, pp. 670-672 (another cast illustrated)