- CSB - MetaPress - Google - Bing - Yahoo
 | 1998 | |
|---|---|---|
| 1 |      | Burkhardt Fischer, Jens Thamm, Lutz Michael Wegner, Stephan Wilke, Christian Zirkelbach: ESCHER's Complex Objects: A Demonstration of Simplicity. VDB 1998: 175-178 |
| 1 | Jens Thamm | [1] |
| 2 | Lutz Michael Wegner | [1] |
| 3 | Stephan Wilke | [1] |
| 4 | Christian Zirkelbach | [1] |