L. Maillard, Auguste Rodin, Paris, 1899. no. 16 (another version illustrated). ,G. Grappe, Le Musée Rodin, Paris, 1944, no. 113 (another cast illustrated). ,R. Descharnes and J.-F. Chabrun, Auguste Rodin, London, 1967, p. 134 (another cast illustrated).,I. Jianou and C. Goldscheider, Rodin, Paris, 1967, pl. 56-57 (another cast illustrated).,B. Champigneulle, Rodin, Paris, 1967, no. 34 (another version illustrated).,J.L. Tancock, The Sculpture of Auguste Rodin, Philadelphia, 1976, nos. 32a, 32b, 32-4 (other casts illustrated pp. 242, 243, 246).,A. E. Elsen, Rodin Rediscovered, Washington D.C., 1981, fig. 3.13 (another version illustrated). ,A. E. Elsen, Rodin's Art, New York, 2003, no. 413 (other casts illustrated pp. 494-496). ,D. Finn and M. Busco, Rodin and His Contemporaries: The Iris and B. Gerald Cantor Collection, New York, 1991 (another cast illustrated).,A. Le Normand-Romain, The Bronzes of Rodin, Catalogue of Works in the Musée Rodin, vol. I, Paris, 2007, p. 334 (other casts illustrated)