| Europa League 1990/1991 - Appearances as Referee |  |
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 |
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| 02/10/1990 | 1. FC Köln | - | IFK Norrköping | 3:1 | - | - | - |
| 27/11/1990 | Admira/Wacker | - | Bologna FC | 3:0 | - | - | - |
| Europa League 1990/1991 - Appearances as Referee | |
|
|
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| 02/10/1990 | 1. FC Köln | - | IFK Norrköping | 3:1 | - | - | - |
| 27/11/1990 | Admira/Wacker | - | Bologna FC | 3:0 | - | - | - |
| Complete name: | Lajos Hartmann |
| Born: | 11/10/1947 |
| Place of birth: |
Budapest, 
Hungary |
| Residence: | Budapest |
| Nationality: |
Hungary |