求助文献两篇，十分感谢

[1]Clear,S. The relationship between firm investment and financial status.Journal of Finance, 1999, 54: 673- 692

[2]Hoshi Takeo,Kashyap Aniland Scharfstein David. Corporate,Structure,Liquidity,andInvestment:Evidence from Japanese Panel Data[J].Quarterly Journal of Economics, 1991,106(1),33- 60.