3Chomsisengphet,Souphala,and Anthony Pennington-Cross.The Evolution of the Subprime Mortgage Market [J].Federal Reserve Bank of Saint Louis Review,2006,88(1):pp.31-56.
6Chomsiscngphet, S. and A. Pennington -- Cross. The Evolution of the Subprime Mortgage Market[J]. Federal Reserve Bank of St. Louis Review, 2006(1):31--56.