18. Other current liabilities
| in € thousands | 31.12.2009 | 31.12.2008 |
|---|---|---|
| Rental deposits | 873 | 1,469 |
| Value added tax | 1,850 | 1,727 |
| Service contract liabilities | 639 | 4,122 |
| Debtors with credit balances | 110 | 252 |
| Others | 1,933 | 2,490 |
| 5,405 | 10,060 |
“Others” mainly comprises liabilities for heating and ancillary costs, together with prepaid rent for the following year.