【作者(必填)】Chan, S.H., Martin, J.D., Kensinger, J.W.

【文题(必填)】Corporate research and development expenditures and sharevalue. Journal of Financial Economics 26, 255– 276.

【年份(必填)】1990

【全文链接或数据库名称(选填)】http://www.sciencedirect.com/science/article/pii/0304405X9090005K