University of Siegen
College of Electrical Engineering 
and Computer Science
Hoelderlinstr. 3, D-57068 Siegen
271-740-2316 (phone)
271-740-2532 (fax)
E-mail: [email protected]

and 

Adjunct Assistant Professor
Northeastern University
College of Computer Science
360 Huntington Avenue
Boston, MA 02115, USA
E-mail:  [email protected]