1. Nanoscale Magnetic Materials - Magnetic Domains, Institute for Materials Science, Kiel University, Kiel, Germany
2. Faculty of Physics, University of Białystok, Białystok, Poland
3. Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Kraków, Poland
4. Inorganic Functional Materials, Institute for Materials Science, Kiel University, Kiel, Germany