Supervisory board member diaries - Claudia Buch
- 20 June 2025
- 16 May 2025
- 25 April 2025
- 21 March 2025
- 21 February 2025
- 17 January 2025
- 15 November 2024
- 18 October 2024
- 17 September 2024
- 15 August 2024
- 19 July 2024
- 19 June 2024
- 15 May 2024
- 22 April 2024