1.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1974.
Swiss german | 3 SE |
2.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1971.
English | 10B OMPI |
3.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1971.
French | 10A OMPI |