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Corona virus - Important information - Please take note!

(Last updated: 24.08.2021)

Please pay attention to the following rules regarding the library usage:

1.) Currently, unfortunately no new reading room guests can be accepted. This rule will expectedly apply until October 31, 2021.

2.) Please, always send an e-mail to the loan department before visiting the library and inquire about the terms and conditions of usage that might possibly have changed meanwhile ( ).

Please take into account the opening times of the reading room from Monday to Friday from 9 a.m. to 7 p.m. The service at the loan desk is available Monday to Thursday from 10:30 a.m. to 12:30 p.m.

Please come always only as an individual to the Institute. After entering the Institute and disinfecting your hands, please report to the reception desk.

3.) If you come from a current risk area or “Risikogebiet” (Please check here:, you can only access the library in compliance with the applicable laws and regulations (especiallay“ Verordnung der Landesregierung über infektionsschützende Maßnahmen gegen die Ausbreitung des Virus SARS-CoV-2(Corona-Verordnung – CoronaVO )”

4.) Scholarship holders, guests with special permission as well as students of the directors and (former and active) research group leaders or “Forschungsgruppenleiter/-innen” further on receive privileged access.

Non-reserved places are distributed according to the "first come, first served" system.

As long as no different rule is framed, guests without a permanent work place in the reading room, especially students, can use the scanner area as day guests or “Tagesgäste” after having registered by e-mail for temporary research and scanning work.

5.) Please wear your medical mask in all public areas of the Institute, in the corridors, in front of the counters, in the hall and rotunda, in all service offices and on the way to the toilet and the vending machine café.

Please use the hand sanitizer before using the scanners and adhere to the general hygiene regulations at the Institute (see bulletins).

6.) Reserved reading room working spaces will be cleared by the lending staff one week after they have not been used.

A key research tool is the library which holds 685,000 volumes and offers access to more than 29,600 journals and periodicals [December 2019]. In the areas of public international law, European Union law and comparative public law, the library is the largest in Europe and one of the most comprehensive in the world. Researchers from all over the world are welcomed as guests and invited to use the services of the library.


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Corona virus - current opening hours

Reading rooms

Monday - Friday 09:00 - 19:00


Loan desk service times

Monday - Thursday 10:30 - 12:30