You can find them in Stud.IP 99997 under the "Files" tab. The permitted exam aids have been published on the Semester-related information web page.
If you fall ill and are unable to attend an exam, please submit the Inability to Attend Examinations due to Illness Form to the Examinations Office as described in the related information sheet. Please be advised that a normal certificate of incapacity to work issued by a doctor (“Arbeitsunfähigkeitsbescheinigung”) does not meet the requirements.