The woman of 'The City of Paris', [the painting, Delaunay painted in 1910 – 1912] sums up the [his] Cubist period....[his painting from 1913] 'The Cardiff team' is more significant in the expression of colour, less shattered. The yellow poster in the complete picture contrasts with the blues, greens and orange.

In: 'Du cubisme a l'art abstrait'; published by Francastel in 1924; Quoted in Futurism, ed. By Didier Ottinger; Centre Pompidou / 5 Continents Editions, Milan, 2008, p. 190