Julio Rinaldini, "Lucio Fontana o la vision inflamada y dinamica del objeto", Cabalgata, no. 16, Buenos Aires, February 1948, n.p., illustration of the bronze example
Anon., "L"ambiente spaziale di Lucio Fontana", San Remo, July - August 1949, n.p., illustration of the bronze example
Enrico Crispolti, Ed., Lucio Fontana, Catalogue Raisonné des Peintures et Environments Spatiaux , Vol. II, Brussels 1974, no. 46 SC 1, p. 20, illustration of the bronze example
Ethel Martínez Sobrado, "Fontana", Pintores Argentinos del Siglo XX , no. 79, Buenos Aires 1981, n.p., illustration of the bronze example
Enrico Crispolti, Lucio Fontana, Catalogo Generale , Vol. I, Milan 1986, no. 46 SC 1, p. 85, illustration of the bronze example
Enrico Crispolti, Centenario di Lucio Fontana , Milan 1999, p. 35, illustration of the bronze example
Enrico Crispolti , Lucio Fontana, Catalogo Ragionato di Sculture, Dipinti, Ambientazioni , Vol. I, Milan 2006, no. 46 SC1, p. 203, illustration of the bronze example