1955 - Internal institutional documents A list of works for the Picasso exhibition, which will travel from Paris to Munich
15 June 1956 - Invoices An invoice from R. Lerondelle for the delivery of the works arriving from New York.
<em>The New York Times</em>, New York, June 13, 1971, 1 - Article “Vietnam Archive: Pentagon Study Traces 3 Decades of Growing U.S. Involvement”