1. Institute of Pharmaceutical
Sciences, Department of Pharmaceutical Technology, Karl-Franzens University Graz, 8010 Graz, Austria
2. Institute of Solid State Physics, Graz University of Technology, 8010 Graz, Austria
3. Research Center Pharmaceutical Engineering GmbH, 8010 Graz, Austria
4. Humboldt-Universität
zu Berlin, Institut für Physik,
D-12489 Berlin, Germany
5. Helmholtz Zentrum Berlin für Materialien und Energie, BESSY II,
D-12489 Berlin, Germany