Plastic optical fibers : 6 September 1991, Boston, Massachusetts
Photonics in the automobile II : 6 April 2006, Strasbourg, France ; [Photonics Europe]
Photonics in the automobile II : 6 April 2006, Strasbourg, France ; [Photonics Europe]
Photonics at the Air Force Photonics Center : 4-5 April 1994, Orlando, Florida