Dr. Christoph Lüdeling     Address: Physikalisches Institut der Universität Bonn   Nussallee 12   53115 Bonn   Germany Office: Room 2.028 (Wegelerstr. 10) Phone: +49-228-73-3163 Fax: +49-228-73-3223 E-Mail: luedeling (at) th.physik.uni-bonn.de   Publications (from SPIRES-SLAC)   Private Home Page