SPI-based drought category prediction using loglinear models

The Generalized Integer Gamma Distribution—A Basis for Distributions in Multivariate Statistics

Drought class transition analysis through Markov and Loglinear models, an approach to early warning

The generalized near-integer Gamma distribution: a basis for ‘near-exact’ approximations to the distribution of statistics which are the product of an odd number of independent Beta random variables

A general near-exact distribution theory for the most common likelihood ratio test statistics used in Multivariate Analysis

Near-exact distributions for the likelihood ratio test statistic to test equality of several variance-covariance matrices in elliptically contoured distributions