@book{Grunwald2013,
  author    = {Guido Grunwald},
  title     = {Garantien als Marketinginstrument : Wirkungs- und Entscheidungsanalyse},
  publisher = {Eul},
  address   = {Lohmar},
  isbn      = {978-3-8441-0226-0},
  pages     = {97},
  year      = {2013},
  language  = {de}
}