Contact information:

    Prof. Solomon Saltiel
University of Sofia
    Faculty of Physics,
    Department of Quantum  Electronics
    5 J. Bourchier blvd
    BG-1164, Sofia, Bulgaria

e-mails:   saltiel@phys.uni-sofia.bg
solomonsaltiel@yahoo.com
      FAX 359 2 96 25 276
      TEL. +3592 862 15 30  or 359 2 8161 866

University of Sofia web page: http://www.uni-sofia.bg
Faculty of Physics web page: http://www.phys.uni-sofia.bg
Department of Quantum  Electronics: http://quantum.phys.uni-sofia.bg/
Solomon Saltiel web page: http://quantum.phys.uni-sofia.bg/saltiel/home.html