1. Distributed Automation: PABADIS versus HMS;Lüder,2005
2. Strukturwandel fordert neue Strategien – Studie Automatisierung 2010;Mercer,2004
3. Market Analysis and Forecast Through 2007;ARC,2004
4. Industrial Ethernet Devices Worldwide Market Forecasted to Grow 51,4% Annually;ARC,2005