共 3 条
[2]
Patent information for strategic technology management[J] . Holger Ernst.World Patent Information . 2003 (3)
[3]
Korean Patent Information Products and TheirAvailablity .2 Euntaek Hwang. http://www.european-patent-office.org/epidos/conf/jpinfo/2003/pdf/hwang-euntaek-kipo.pdf . 2005