@book{WolfDomroeseLiebel1980,
  author    = {Wolf, Norbert Richard and Domr{\"o}se, Gerd and Liebel, Hermann},
  title     = {List Sprachbuch 5},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41637},
  publisher      = {Universit{\"a}t W{\"u}rzburg},
  year      = {1980},
  abstract  = {No abstract available},
  subject      = {Deutschunterricht},
  language  = {de}
}
@book{WolfDomroeseLiebel1981,
  author    = {Wolf, Norbert Richard and Domr{\"o}se, Gerd and Liebel, Hermann},
  title     = {List Sprachbuch 6 [Hauptband]},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41688},
  publisher      = {Universit{\"a}t W{\"u}rzburg},
  year      = {1981},
  abstract  = {No abstract available},
  subject      = {Deutschunterricht},
  language  = {de}
}