@book{LittkemannHoltupSchulte2008,
  author    = {J. Littkemann and M. Holtup and K. Schulte},
  title     = {Buchf{\"u}hrung: Grundlagen - {\"U}bungen - Klausurvorbereitung},
  edition   = {3. Aufl.},
  isbn      = {3834908576},
  year      = {2008},
}