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| 1999 | ||
|---|---|---|
| 2 | EE | Heiko Harborth, Meinhard Möller: Weakened Ramsey Numbers. Discrete Applied Mathematics 95(1-3): 279-284 (1999) | 
| 1993 | ||
| 1 | Heiko Harborth, Arnfried Kemnitz, Meinhard Möller: An Upper Bound for the Minimum Diameter of Integral Point Sets. Discrete & Computational Geometry 9: 427-432 (1993) | |
| 1 | Heiko Harborth | [1] [2] | 
| 2 | Arnfried Kemnitz | [1] |