@book{9783896937735,
  title = {Spohr Jahrbuch 2021},
  editor = {Stadt Braunschweig},
  publisher = {Frank \& Timme},
  year = {2022},
  edition = {1},
  series = {Spohr Jahrbuch},
  url = {https://www.frank-timme.de/en/programme/product/spohr\_jahrbuch\_2021}
}