The value of invention patents in China: Country origin and technology field differences
| Year of publication: |
2012
|
|---|---|
| Authors: | Gupeng, Zhang ; Xiangdong, Chen |
| Published in: |
China economic review : an international journal. - Amsterdam [u.a.] : Elsevier, ISSN 1043-951X, ZDB-ID 11172484. - Vol. 23.2012, 2, p. 357-371
|