Filina, Marina V., and Andrew M. Zubkov. “Tail Properties of Pearson Statistics Distributions”. Austrian Journal of Statistics 40, no. 1&2 (February 24, 2016): 47–54. Accessed October 12, 2025. https://ajs.or.at/index.php/ajs/article/view/vol40%2C%20no1%262%20-%205.