@article{19879,
      author = {Ruester, Bernd, and Rüster, Bernd, and Gräser, Peter F.  and Ruster, Bernd,},
      url = {http://tind.wipo.int/record/19879},
      title = {World intellectual property guidebook.: Federal Republic  of Germany, Austria, Switzerland /},
      recid = {19879},
      pages = {1 volume (various paging) ;},
}