| Europa League 1989/1990 - Appearances as Referee |  |
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| 26/09/1989 | Videoton SC | - | Hibernian FC | 0:3 | - | - | 1 |
| Europa League 1989/1990 - Appearances as Referee | |
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| 26/09/1989 | Videoton SC | - | Hibernian FC | 0:3 | - | - | 1 |
| Complete name: | Karl-Josef Assenmacher |
| Born: | 30/05/1947 |
| Place of birth: |
Germany |
| Residence: | Fischenich |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 153 |