| Cup Winners Cup 1981/1982 - Appearances as Referee |  |
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 |
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| 01/10/1981 | Standard Liège | - | Floriana FC | 9:0 | - | - | - |
| Cup Winners Cup 1981/1982 - Appearances as Referee | |
|
|
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| 01/10/1981 | Standard Liège | - | Floriana FC | 9:0 | - | - | - |
| Complete name: | Jean Koster |
| Born: | |
| Place of birth: |
Luxembourg |
| Nationality: |
Luxembourg |