| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Felix Brych | 4 | 2 | - | - | 2 |
| Manuel De Sousa | 1 | 1 | - | - | 1 |
| Alberto Undiano Mallenco | 1 | 1 | - | - | 1 |
| Guido Winkmann | 1 | 1 | - | - | 1 |
| Gunther Perl | 2 | 1 | - | - | 2 |
| Manuel Grafe | 2 | 1 | - | - | 2 |
| Luca Banti | 2 | 1 | - | - | 2 |
| Deniz Aytekin | 3 | 1 | - | - | 3 |
| Antonio Miguel Mateu Lahoz | 1 | 0 | 1 | - | 1 |
P = Matches played,
C = Cards .