Name: Per Siegbahn

          Address: Stockholm center for Physics, Astronomy and Biotechnology (SCFAB)

          Department of Physics

          SE-106 91

          Stockholm University

          Sweden

          e-mail:ps@physto.se

          Phone: +46-8-5537 87 04

          Fax: +46-8-5537 86 01

          Homepage: http://www.qc.physto.se/~ps