十万火急求3本书： 希望能求到电子版的书籍。 谢谢

1)Risk Budgeting: A New Approach to Investing
ISBN: 1899332944

2)Managing risk in alternative investment strategies: successful investing in hedge funds and managed futures ... By Lars Jaeger
ISBN : 0273656988



3) Risk budgeting: portfolio problem solving with value-at-risk

By Neil D. Pearson