Michel Seuphor: Citations en anglais
Source: Abstract Painting (1964), p. 159 : About 1961
Source: Abstract Painting (1964), pp. 100-101
Source: Abstract Painting (1964), pp. 43/44: (1962)
Source: Abstract Painting (1964), p. 105
Source: Abstract Painting (1964), p. 104
Source: Abstract Painting (1964), pp. 97-98:
Source: Abstract Painting (1964), p. 98
Source: Abstract Painting (1964), p. 103