21. Intangible assets

Changes in the individual items of intangible assets are shown in the statement of changes in non-current assets.

At the end of the reporting period, there were no intangible assets with indefinite useful lives.

In the reporting period, research and development expenses of EUR 2,833 thousand (previous year: EUR 6,508 thousand) were recorded in the income statement. These expenses are attributed in full to the item ‘Other expenses’.

In the reporting period, intangible assets purchased for EUR 2,558 thousand (previous year: EUR 3,972 thousand) were still in use, although they had already been fully amortised.