@book{9783732912223,
  title = {Im Dienst für den Mittelstand},
  author = {Ulfried Weißer},
  publisher = {Frank \& Timme},
  year = {2026},
  edition = {1},
  url = {https://www.frank-timme.de/en/programme/product/im\_dienst\_fuer\_den\_mittelstand}
}