1. VDI Fahrzeugelektronik, Baden-Baden, Germany, Sept. 1996.
2. MIT Industry Consortium on Advanced Automotive Electrical/Electronic Components and Systems, Regensburg, Germany, Sept. 22/23, 1997.
3. Fortschritte in der Automobil-Elektronik, Stuttgart, Nov. 25/26, 1997.
4. Systèmes Electriques and Electroniques à Bord des Automobiles, 7e Courès International, Toulouse, March 10/11, 1998.
5. Elektronik im Kraftfahrzeug XVIII, Congress, Munich, June 16/17, 1998.