The office hours of Prof. Dr. Reiner Keller take place during the lecture period on the following dates (in person or online):

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• ??? 29 October, 11 a.m.
• ??? 26 November, 11 a.m.
• ??? 10 December, 4-5 p.m.
• ??? 22 January, 1-2 p.m.

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Please register via the secretary's office.