求关于商业银行投行业务方面的英文文献

本人想写“商业银行投资银行业务”方面的论文，有没有比较新点的相关英文文献，谢谢！

The Demise of Investment Banking Partnerships: Theory and Evidence
ALAN D. MORRISON and WILLIAM J. WILHELM, JR.∗
THE JOURNAL OF FINANCE • VOL. LXIII, NO. 1 • FEBRUARY 2008




The Value of Investment Banking Relationships:
Evidence from the Collapse of Lehman Brothers
CHITRU S. FERNANDO, ANTHONY D. MAY, and WILLIAM L. MEGGINSON
THE JOURNAL OF FINANCE • VOL. LXVII, NO. 1 • FEBRUARY 2012