
In a letter to his friend Franz Marc (Jan. 1912), quoted in 'Meseure 38'; as quoted in Movement, Manifesto, Melee: The Modernist Group, 1910-1914, Milton A. Cohen, Lexington Books, Sep 14, 2004, p. 73, (note 19)
as quoted in Wassily Kandinsky: Life and Work, Will Grohmann. H. N. Abrams, 1958 p. 78
1920 - 1930
In a letter to his friend Franz Marc (Jan. 1912), quoted in 'Meseure 38'; as quoted in Movement, Manifesto, Melee: The Modernist Group, 1910-1914, Milton A. Cohen, Lexington Books, Sep 14, 2004, p. 73, (note 19)
Stephen Tobolowsky in a Facebook post on July 3, 2014 https://www.facebook.com/stephentobolowsky/posts/897200563629843.
(1986) n.p.
Structures are no longer valid', in "Ein Gespräch..."
from: 'Köpfe, Gesichte, Meditationen', Clemens Weiler
Source: 1936 - 1941, Life Memories' (1938), p. 149
In 1958; p. 41
before 1960, "Yves Klein, 1928 – 1962, Selected Writings"