1. Head of Division, BAM Federal Institute for Materials Research, 12200 Berlin, Germany.
2. Research Scientist, BAM Federal Institute for Materials Research, 12200 Berlin, Germany.
3. Research Engineer, Faculty of Civil and Environmental Engineering, Ostfalia Univ. of Applied Sciences, Campus Suderburg, 29556 Suderburg, Germany.
4. Head of Environmental Chemistry Group, Ostfalia Univ. of Applied Science, 29556 Suderburg, Germany.