New York, 30 August 1979 - Institutional correspondence A letter from Ethen Shein to Richard E. Oldenburg
2004 - Photograph Maya Picasso and Diana Widmeyer Picasso contemplate the Guernica tapestry at Atelier Picasso, Paris
<em>Life</em>, New York, November 8, 1968, front cover - Article “As the bombing stops—THIS GIRL TRON”