L. Maillard, Etudes sur quelques artistes originaux, Auguste Rodin, Paris, 1899, pp. 121-122 (marble version illustrated, pl. 16).<br>G. Grappe, Catalogue du Musée Rodin, Paris, 1927, p. 42, nos. 69-70 (plaster and another version illustrated).<br>G. Grappe, Le Musée Rodin, Paris, 1944, p. 141, no. 56 (marble version illustrated).<br>R. Descharnes and J.-F. Chabrun, Auguste Rodin, Lausanne, 1967, p. 135 (another cast illustrated, p. 134).<br>I. Jianou and C. Goldscheider, Rodin, Paris, 1967, p. 96 (another cast illustrated, pls. 56-57).<br>J.L. Tancock, The Sculpture of Auguste Rodin, Philadelphia, 1976, pp. 241-247, no. 32 (another cast illustrated, p. 243, no. 32b; marble version and another version illustrated, pp. 242 and 246).<br>D. Finn and M. Busco, Rodin and His Contemporaries, The Iris & B. Gerald Cantor Collection, New York, 1991, pp. 227 and 238 (another version illustrated, p. 227).<br>A.E. Elsen, Rodin's Art, The Rodin Collection of the Iris & B. Gerald Cantor Center for Visual Arts at Stanford University, New York, 2003, pp. 494-497, no. 148 (another cast illustrated, pp. 494-495, fig. 413; another version illustrated, p. 496, fig. 414).<br>A. Le Normand-Romain, The Bronzes of Rodin, Catalogue of Works in the Musée Rodin, Paris, 2007, vol. I, p. 332, no. S. 2473 (another cast illustrated; marble version illustrated, p. 336, fig. 4).<br>