From the artist to Walter Pach
Private Collection, Switzerland
The Little Review, vol. 8, Brancusi Number, New York, (Autumn 1921), pl. 7
Brancusi Photographe, Paris: Centre Georges Pompidou, 1977, p. 16
H. Kramer, Brancusi, The Sculptor as Photographer, London: David Grob Editions, 1980, pl. V1 (detail)
F. T. Bach, M. Rowell, A. Temkin, Constantin Brancusi, Paris: Centre Georges Pompidou/Philadelphia Museum of Art, 1995, p. 170
La Collection L’Atelier Brancusi, Paris: Centre Georges Pompidou, 1997, p. 58
C. Giménez, M. Gale, eds., Constantin Brancusi, The Essence of Things, exh. cat., Tate Gallery, London, 2004, p. 18
Constantin Brancusi and Richard Serra, A handbook of possibilities, Basel: Foundation Beyler, 2011, p. 67