共 9 条
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
The capitalization; amortization; and value-relevance of R&D[J] Baruch Lev;Theodore Sougiannis Journal of Accounting and Economics 1996,
[9]
Firm Size and the Nature of Innovation within Industries: The Case of Process and Product R&D[J] The Review of Economics and Statistics 1996,

