@book{9783896933164,
  title = {Soziolinguistik des Deutschen},
  author = {Matthias Hartig},
  editor = {Hans G Roloff},
  publisher = {Frank \& Timme},
  year = {1998},
  edition = {2},
  series = {Germanistische Lehrbuchsammlung},
  volume = {16},
  url = {https://www.frank-timme.de/en/programme/product/soziolinguistik\_des\_deutschen}
}