Dispersion Measures and Analysis for Factorial Directional Data with Replicates
针对含重复观测的因子方向数据，提出离散度度量方法并给出分析框架，适用于需要处理方向数据离散度的统计应用场景。
Christine M. Anderson, C. F. Jeff Wu, Dispersion Measures and Analysis for Factorial Directional Data with Replicates, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 45, No. 1 (1996), pp. 47-61