1－2004－Risk reduction in S&L mortgage loan portfolios through geographic diversification
链接：http://www.springerlink.com/content/pn27522x345u431j/

2－1989－The impact of underwriting and dealing on bank returns and risks
链接：http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCY-45F90PM-9S&_user=9176807&_coverDate=03%2F31%2F1989&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_rerunOrigin=scholar.google&_acct=C000055629&_version=1&_urlVersion=0&_userid=9176807&md5=9e418a4955249ab45b8a286a4d493d8d