Bracco Industria Chimica Spa, Communication and Image: correspondence, in particular with the Equipe Spa agency of Milan for the advertising campaign for the 1991 Christmas concert; internal communications with the Executive Board concerning the organisation of the Christmas concert held at the Milan Conservatory on 15 December 1991 dedicated to the League for the Rights of the Handicapped (Ledha), orchestra Symphonieorchester der Wierner Volksoper, conductor Rudolf Bibl; press review.