1David Encaoua,Dominique Guellec,Catalina Martnez.Patent systems for encouraging innovation:Lessons from economic a-nalysis[J].Research Policy,2006,(35):1423-1440.
2Thomas A.Hemphill.U.S.Patent policy:crafting a 21st century national blueprint for global competitiveness[J].Knowledge,Technology & Policy,2008,(21):83-96.
3Biju Paul Abraham,Soumyo D.Moitra.Innovation assessment through patent analysis [J].Technovation,2001,(21):245-252.
4Holger Ernst.Patent information for strategic technology man-agement[J].World Patent Information,2003,(25):233-242.