@book{LittkemannHoltrupSchulte2020,
  author    = {J{\"o}rn Littkemann and Michael Holtrup and Klaus Schulte},
  title     = {Buchf{\"u}hrung: Grundlagen, {\"U}bungen, Klausurvorbereitung},
  isbn      = {9783739223926},
  year      = {2020},
}