共 27 条
[3]
The Stock Market Valuation of R&D Information in Biotech Firms *.[J].Bixia Xu;Michel L. Magnan;Paul E. André.Contemporary Accounting Research.2007, 4
[7]
Determining the trade–environment composition effect: the role of capital; labor and environmental regulations.[J].Matthew A. Cole;Robert J.R. Elliott.Journal of Environmental Economics and Management.2003, 3
[8]
R&D; firm size and innovation: an empirical analysis.[J].Daniel Shefer;Amnon Frenkel.Technovation.2003, 1