You can reach the staff at the service desk on site, by phone (+49 211 4351-9200) or by e-mail during the following service hours:
| Monday till Friday | 9.00 to 18.00 |
| Saturday | 11.00 to 18.00
|
Please note the following:
Monday to Saturday, specialized staff is on site until 6:00 p.m.
Monday through Friday after 6:00 p.m. and Sunday from 11:00 a.m. to 10:00 p.m., a security guard will be present and the following services will be omitted:
Registration, deregistration, return of interlibrary loan media, lending and return of journal issues or volumes, re-lending (the maximum total lending period of 112 days has been reached), lending of locker cards and keys, payment of fees on site (bank transfer possible).
