• Customer Relationship Management – Strategien und Implementierung
• Customer Relationship Management in der Telekommunikationsindustrie/ bei Energieversorgern

Katona, Robert & Baier, Daniel (2005): Customer Relationship Management in the Telecommunications and Utilities Market, in: Innovations in Classification, Data Science, and Information Systems, Springer-Verlag, Berlin Heidelberg New York 2005

Katona, Robert: Customer Relationship Management in the Telecommunications and Utilities Market, 27th Annual Conference of the Gesellschaft für Klassifikation, Cottbus, März 2003

• Executive Vice President CRM Strategy (T-Home - Deutsche Telekom AG )
• Gastreferent: Hochschule Merseburg (FH) Lehrstuhl: Allgemeine Betriebswirtschaftslehre, Marketing und E-Commerce Professor Dr. Jens Gutsche
• Gastreferent: Business School – Hanley Management College Marketing MBA – Deutsche Telekom AG