1、[name]     Improving Portfolio Efficiency
[author]    Kurt D Winkelmann
[Magazine]    The Journal of Portfolio Management
Winter 2004, Vol. 30, No. 2: pp. 23-38
[Link]    http://www.iijournals.com/doi/abs/10.3905/jpm.2004.319927


2、
[name]    A Spectrum Approach to Active Risk Budgeting
[author]   Andrew Alford , Robert C Jones , and Kurt D Winkelmann
[magazine]   The Journal of Portfolio Management
Fall 2003, Vol. 30, No. 1: pp. 49-60


[Link]   http://www.iijournals.com/doi/abs/10.3905/jpm.2003.319919




先谢过了！！