On Approximating Lead Time Demand Distributions Using the Generalised λ-type Distribution
研究了如何用广义λ型分布来近似提前期需求分布，为库存和调度决策提供更准确的概率模型。
M. Kumaran, K. K. Achary, On Approximating Lead Time Demand Distributions Using the Generalised λ-type Distribution, The Journal of the Operational Research Society, Vol. 47, No. 3 (Mar., 1996), pp. 395-404