1Allen N. Berger,Gregory F. Udell.The economics of small business finance: The roles of private equity and debt markets in the financial growth cycle[J].Journal of Banking and Finance.1998(6)
2A. N. Berger and G. F. Udell. The Economics of Small Business Finance; The roles of private equity and debt markets in the financial growth cycle [J ]. Journey of Banking and Finance, 1998, (22) :613 - 673.