P. Dejean, Carlo-Rembrandt-Ettore-Jean Bugatti, New York, 1982, p. 347 (another cast illustrated; titled Panther Lying Down).
J. Chalom des Cordes and V. Fromanger, Rembrandt Bugatti: Catalogue raisonné, Paris, 1987, p. 274 (another cast illustrated in color, pp. 274-275 and on the cover).
E. Horswell,Rembrandt Bugatti: Life in Sculpture, London, 2004, p. 159 (another cast illustrated in color, pp. 160-161; titled Stretching Leopard and dated 1911).
V. Fromanger, Rembrant Bugatti, Sculpteur: Répertoire monographique, Paris, 2009, p. 334, no. 311 (another cast illustrated in color, pp. 213 and 334).
P. Demandt and A. Daemgen, Rembrandt Bugatti, The Sculptor, exh. cat., Nationalgalerie, Berlin, 2014, p. 122 (another cast illustrated in color, pp. 122-123).
V. Fromanger, Rembrant Bugatti, Sculpteur: Répertoire monographique, Paris, 2016, p. 370, no. 315 (another cast illustrated in color, pp. 220-221 and 315).