BuildingIPvalue. "BuildingIPvalueArquivado 23 de outubro de 2021 en Wayback Machine.." Recent developments in intellectual property. Consultado o 2007-04-04.
BuildingIPvalue. "BuildingIPvalueArquivado 23 de outubro de 2021 en Wayback Machine.." Recent developments in intellectual property. Consultado o 2007-04-04.