1. Vattenfall Europe PowerConsult GmbH, Kraftwerkstr. 22, D-03226 Vetschau, Germany
2. Institute of Chemistry, University of Rostock, A.-Einstein-Str. 3a, D-18059 Rostock, Germany
3. Technical Thermodynamics, University of Rostock, A.-Einstein-Str. 2, D-18059 Rostock, Germany