@book{9783865960771,
  title = {Regionalgeschichte im Spiegel der Sprache},
  author = {Karl-Ernst Sommerfeldt},
  publisher = {Frank \& Timme},
  year = {2007},
  edition = {1},
  series = {Sprachwissenschaft},
  volume = {2},
  url = {https://www.frank-timme.de/de/programm/produkt/regionalgeschichte\_im\_spiegel\_der\_sprache}
}