[1] Martin Blaszko, "Sculpture and the Principle of Bipolarity," Leonardo 1, no. 3 (1968): 223.

[2] Ibid., 229.

[3] See the artist’s biographical note in Cold America: Geometric Abstraction in Latin America (1934–1973), exh. cat. (Madrid: Fundación Juan March, 2011 ), 366.

[4] Celeste Tarricone, “Movement of Contradictions,” Buenos Aires Herald, January 21, 2001, 10.

[5] Victoria Verlichak, “Martin Blaszko: Obituary,” ArtNexus. Online.

[6] See Blaszko’s account of events as quoted in Maria Lluïsa Borràs, “Geometric Abstraction and Madí Art,” in Arte Madi, exh. cat (Museo Nacional Centro de Arte Reina Sofia: Madrid, 1997), 288.

[7] Blaszko “Sculpture and the Principle of Bipolarity,” 229­–232.

[8] Ibid., 223.