| 2005 | ||
|---|---|---|
| 2 | Rainer Steffen, Thomas Messerer, Rudi Knorr: Managing Access Control with Distributed Trust - A Feasible Approach. PSC 2005: 193-198 | |
| 2004 | ||
| 1 | Walter Zimmer, Thomas Messerer, Rainer Steffen, Rudi Knorr: Security versus Usability in a Ubiquitous Environment. GI Jahrestagung (2) 2004: 605-609 | |
| 1 | Rudi Knorr | [1] [2] | 
| 2 | Rainer Steffen | [1] [2] | 
| 3 | Walter Zimmer | [1] |