7TOM C. WILSON. Portfolio Credit Risk, Part Ⅰ and Ⅱ [M].Risk (Part Ⅰ ,1997.111-117;Part Ⅱ,1997.56-61).
8MARKUS KERN ,BERND RUDOLPH. Comparative Analysis of Alternative Credit Risk Models-an Application on German Middle Market Loan Porfolios[A]. CFS Working Paper[C].2001.
9MICHAEL B. GORDY. From CreditMetrics to CreditRisk+and Bank Again[A]. Working Paper[C].1998.
10J.P. MORGAN. Credit Metrics Technical Document[M].New York, 1997.