@article{19088,
      note = {ISSN: 0018-9855},
      author = {Beier, Friedrich-karl, and Moufang, Raine.},
      url = {http://tind.wipo.int/record/19088},
      title = {Convention priority for improvement inventions and patents  of addition /},
      recid = {19088},
      pages = {1990, Vol 21, No 5, pages 593-614 ;},
}