
Source: Conversations with Judith Cladel (1939–1944), p. 408
Source: Conversations with Judith Cladel (1939–1944), p. 408
Source: Conversations with Judith Cladel (1939–1944), p. 408
"Wyndham Lewis Against Abstract Art" (1957), p. 164
1960s, Art and Culture: Critical Essays, (1961)
undated quotes, The Daily Practice of Painting, Writings (1962-1993)
Source: Conversations with Judith Cladel (1939–1944), p. 407
Vol. 1: 'My beautiful One, My Unique!', pp. 130-140
1895 - 1905, Lettres à un Inconnu, 1901 – 1905; Museo Communale, Ascona
Original: Un artista senza cuore non vale nulla. Prima di creare qualsiasi opera, il vero artista dà voce al suo cuore.
Source: prevale.net
Karel Appel – the complete sculptures,' (1990) not-paged