| Europa League 1976/1977 - Appearances as Referee |  |
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| 15/09/1976 | Dinamo Bucureşti | - | AC Milan | 0:0 | - | - | - |
| Europa League 1976/1977 - Appearances as Referee | |
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| 15/09/1976 | Dinamo Bucureşti | - | AC Milan | 0:0 | - | - | - |
| Complete name: | Klaus Ohmsen |
| Born: | 16/10/1935 † 02/12/2012 |
| Place of birth: |
Germany |
| Residence: | Hamburg |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 131 |