Deutsche Forschungsgemeinschaft, Bonn-Bad Godesberg (F.R. Germany); International Union of Pure and Applied Physics; Freiburg Univ. (F.R. Germany); p. 129-130; 1976; 2. international conference on inner shell ionization phenomena; Freiburg, F.R. Germany; 29 Mar 1976; 5 refs. Short communication only.