@article{21593,
      recid = {21593},
      author = {Vollrath, Ulrich, and Witte, Jürgen. and Vollrath,  Ulrich,},
      title = {Praxis der Patent- und Gebrauchsmusteranmeldung.},
      pages = {xi, 326 pages :},
      url = {http://tind.wipo.int/record/21593},
}