【作者(必填)】

【文题(必填)】
COLLECTIVE KNOWLEDGE, PROLIFIC INVENTORS AND THE VALUE OF INVENTIONS: AN EMPIRICAL STUDY OF FRENCH, GERMAN AND BRITISH PATENTS IN THE US, 1975–1999
【年份(必填)】

【全文链接或数据库名称(选填)】
http://www.tandfonline.com/doi/pdf/10.1080/10438590701279193#.UruukTyS3IV