Service Design - Escape the Price Spiral! Computerpartner 10/ 2008 (in German) Price-competition? No, thank you! Speech at the Conference "Opportunities 07" (in German) The Service Manifesto (in German/English) The Notebook in 2010: Added Value by Service Design Computerpartner 10/ 2006 (in German) "Utility computing - just hype?" Computerpartner 10/ 2004