@book{Mehrings2006,
  author    = {Mehrings, Josef},
  title     = {Grundlagen des Wirtschaftsprivatrechts},
  edition   = {1. Aufl.},
  publisher = {Pearson},
  address   = {M{\"u}nchen [u.a.]},
  isbn      = {3-8273-7210-0},
  pages     = {623 S. : graph. Darst.},
  year      = {2006},
  language  = {de}
}
@book{Mehrings2009,
  author    = {Mehrings, Josef},
  title     = {Typische Beratungsfallen im Mietrecht},
  year      = {2009},
  language  = {de}
}