FORSCHUNGSKONTOR
© Dipl.-Ing. (FH) Kapt. (AG) Wolf Scheuermann
| Knoten und Verschlingungen | :: | Knots and Links | 
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| :: | Solution of the Exercises (German) | |
| :: | Planar and non-planar Knot Graphs (German) | |
| Irrtümer | :: | Errors | 
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