E-mail:  
agorban@mat.ethz.ch, ikarlin@mat.ethz.ch, zinovyev@ihes.fr, 
Home pages:  
http://mystic.math.neu.edu/gorban/, http://www.ihes.fr/~zinovyev/ 
PACS-Code: 
05.45. a, 05.20.Dd, 05.10. a, 82.20. w