10 January 1998 - Newspapers Experts from major museums around the world analyse the conservation of "Guernica"
Paris, 1937 - Photograph Picasso photographed by Dora Maar working on Guernica in his studio on rue des Grands-Agustin
Oslo, 1938 - Exhibition catalogue Catalogue of the exhibition Henri Matisse, Picasso, G. Braque, Laurens at Kunstnernes Hus, Oslo
November 1939 - Magazines Picasso in Retrospect: 1939–1900. The Comprehensive Exhibition in New York and Chicago
