References in Hungary:

• Bárándy Law Office
• Budapest Bar Association
• University diplomas: BME, BKTE, SZIE
• Ministry of Economic Affairs
• GYSEV Railway Corp.
• Herend Porcelain Manufactory
• Hungarian State Railroads
• Hungarian Chamber of Commerce and Industry
• The Office of the President of the Republic of Hungary
• Hungarian National Gallery
• Hungarian Olympic Committee
• The Office of the Speaker of the National Assembly of Hungary
• Hungarian Post Office
• Hungarian Patent Office
• Hungarian Academy of Sciences
• National Széchényi Library
• Szentendre Open Air Museum
• Szidónia Manor House

References Abroad:

• Vienna Archives
• CSC Critical Skills Consulting SA (Geneva, Switzerland)
• George H. W. Bush Presidential Library
• Gutenberg Museum (Mainz, Germany)
• Helmut Kohl Library
• Pope John Paul II Library
• Rotary Club Ferney-Voltaire, France
• A number of large German art supply wholesalers
• Tokyo Paper Museum
• TSP Europa (Frankfurt/M., Germany)