Ionel Jianou & Cécile Goldscheider, Rodin, Paris, 1967, listed p. 88
Athena Tacha Spear, Rodin Sculpture in the Cleveland Museum of Art, Cleveland, 1967, illustrations of other examples pp. 58-59
Athena Tacha Spear, A Supplement to Rodin Sculpture in The Cleveland Museum of Art, Cleveland, 1974, illustrated pl. 107S
John L. Tancock, The Sculpture of Auguste Rodin, The Collection of the Rodin Museum, Philadelphia, Philadelphia, 1976, illustrated p. 51
Jacques de Caso & Patricia B. Sanders, Rodin's Sculpture, A Critical Study of the Spreckels Collection, San Francisco, 1977, illustrations of the bronze version pp. 155 & 157
Albert E. Elsen, In Rodin’s Studio. A Photographic Record of Sculpture in the Making, Ithaca, 1980, illustrations of the bronze version pls. 34-35
Daniel Rosenfeld, Auguste Rodin's Carved Sculpture, vol. I, Ph.D. Thesis, Stanford University, Palo Alto, 1993, p. 359, illustrated p. 695
Antoinette Le Normand-Romain, Rodin. The Gates of Hell, Paris, 2002, p. 72
Albert E. Elsen & Rosalyn Frankel Jamison, Rodin’s Art. The Rodin Collection of the Iris & B. Gerald Cantor Center for Visual Arts, Stanford University, New York, 2003, illustrations of the bronze versions pp. 229-33
Antoinette Le Normand-Romain, The Bronzes of Rodin. Catalogue of Works in the Musée Rodin, vol. I, Paris, 2007, listed p. 246, illustrations of other examples pp. 245-49