1. Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
2. Novartis Pharma AG, 4056 Basel, Switzerland
3. Hosokawa Micron B.V., Gildenstraat 26, 7005 BL Doetinchem, The Netherlands
4. Institute for Process and Particle Engineering, Graz University of Technology, 8010 Graz, Austria