- CSB - MetaPress - Google - Bing - Yahoo
 | 1989 | |
|---|---|---|
| 1 |      | Helmut Schmidt, Nikolaus Steger, Ulrich Güntzer, Werner Kießling, Rüdiger Azone, Rudolf Bayer: Combining Deduction by Certainty with the Power of Magic. DOOD 1989: 103-122 |
| 1 | Rudolf Bayer | [1] |
| 2 | Ulrich Güntzer | [1] |
| 3 | Werner Kießling | [1] |
| 4 | Helmut Schmidt | [1] |
| 5 | Nikolaus Steger | [1] |