@book{9783896935038,
  title = {Protest, Opposition, Widerstand},
  editor = {Hanns-Werner Heister},
  publisher = {Frank \& Timme},
  year = {2007},
  edition = {1},
  series = {Musik / Gesellschaft / Geschichte},
  volume = {4},
  url = {https://www.frank-timme.de/de/programm/produkt/protest-opposition-widerstand}
}