1. Institute for Nuclear Waste
Disposal, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany
2. Institute for Transuranium Elements,
Joint Research Center, European Commission, P.O. Box 2340, 76125 Karlsruhe, Germany
3. Institute of Physical Chemistry, University of Heidelberg, Im Neuenheimer Feld 253,
69120 Heidelberg, Germany