E. d’Ors, ‘La despedida de soltero del vanguardismo español’, in Mundo Hispánico, Madrid, no. 25, April 1950, p. 33.
G. Gatt, Antoni Tàpies, Bologna, 1967, no. 20 (illustrated; with incorrect dimensions).
M. Tapié, Antoni Tàpies, Milan, 1969, p. 23 (illustrated pl. 27; with incorrect dimensions).
A. Cirici, Tàpies: Witness of Silence, Barcelona, 1972, no. 58, p. 358 (illustrated p. 103; with incorrect dimensions).
J. Vallès Rovira, Tàpies Empremta (art-vida), Barcelona, 1982, p. 93 (illustrated; with incorrect dimensions).
A. Agustí, Tàpies: The Complete Works, vol. I, 1943-1960, Barcelona 1990, no. 202, pp. 104, 526 (illustrated; with incorrect dimensions).
A. Franzke, Tàpies, Munich, 1992, pp. 48-49, 357 (illustrated pl. 24, p. 52; with incorrect dimensions).
J. A. López Manzanares, Madrid antes de “El Paso”: La renovación artística en la postguerra madrileña (doctoral thesis, Universidad Complutense de Madrid), 2006, no. 74, pp. 186-187, 194, 214 & 217 (illustrated p. 428; with incorrect dimensions).