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Share-based payments - Expenses (Details) - EUR (€)
€ in Thousands
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Share-based payments    
Research and development expenses € 480 € 572
Sales and marketing expenses 152 166
General and administrative expenses 5,823 10,547
Total € 6,455 € 11,285