F. Lawton, The Life and Work of Auguste Rodin, London, 1906, p. 44. J. Cladel, Auguste Rodin, L'homme et oeuvre, Paris, 1908. F. Dujardin-Beaumetz, Entretiens avec Rodin, Paris, 1915. L. Bénédite, Rodin, Paris, 1915. G. Grappe, Catalogue du Musée Rodin, Paris, 1929, no. 18, pp. 30-31 (the large version illustrated). C. Goldscheider, Rodin, Paris, 1962, pp. 54-55 (other casts illustrated). A.E. Elsen, Rodin, New York, 1963, p. 20 (the large version illustrated). H. Read, Geschichte der modernen Plastik, Munich, 1966, p. 12, pl. 2 (another cast illustrated). B. Champigneulle, Rodin, London, 1967, no. 12, p. 51 (another cast illustrated). I. Jianou & C. Goldscheider, Rodin, Paris, 1967, p. 85, pls. 6-7 (other casts illustrated). R. Descharnes & J.F. Chabrun, Auguste Rodin, Paris, 1967, p. 53 (the large version illustrated). C. Goldscheider, Rodin Sculptures, London, 1970, pls. 4 & 5 (another cast illustrated). A.E. Elsen, Rodin, London, 1974, pp. 21-25 (another cast illustrated p. 20). J.L. Tancock, The Sculpture of Auguste Rodin, Philadelphia, 1976, no. 64, pp. 343-345 (other casts illustrated). A.E. Elsen, In Rodin's Studio, New York, 1980 (plaster casts illustrated figs. 2 & 5). C. Goldscheider, Auguste Rodin, Catalogue raisonné de l'oeuvre sculpté, vol. I, Paris, 1989, no. 95, pp. 114-117 (another cast illustrated). A. Le Normand-Romain, The Bronzes of Rodin, Catalogue of Works in the Musée Rodin, vol. I, Paris, 2007, p. 123 (another cast illustrated).