@article{9952,
      note = {See French version in LA PROPRIETE INDUSTRIELLE 1975, Vol  91, No 7, p 219-223.},
      author = {Kopff, Andrzej,},
      url = {http://tind.wipo.int/record/9952},
      title = {Letter from Poland /},
      recid = {9952},
      pages = {1 volume ([3] pages) ;},
}