14 June 1997 - Newspapers The PNV (Basque Nationalist Party) secures a commitment from the PP (People's Party) for the temporary transfer of "Gernika" to Bilbao
<em>The New York Times</em>, New York, November 11, 1990, 1, 39 - Article “When Picasso Spooked the FBI”
New York, 24 September 1957 - Institutional correspondence Virginia Pearson's letter to Alfred H. Barr Jr.
New York, 5 November 1957 - Institutional correspondence Virginia Pearson's letter to Katharine Kuh, dated 5 November 1957
New York, 20 September 1957 - Institutional correspondence Virginia Pearson's letter to Katharine Kuh, dated 20 September 1957