Yao, D., Zhang, S., & Zhou, X. (2006). Tracking a financial benchmark using a few assets.
芝加哥风格引文Yao, D., S. Zhang, 与 X. Zhou. Tracking a Financial Benchmark Using a Few Assets. 2006.
MLA引文Yao, D., et al. Tracking a Financial Benchmark Using a Few Assets. 2006.
警告：这些引文格式不一定是100％准确.