May, Warren L., and William D. Johnson. “Constructing Two-Sided Simultaneous Confidence Intervals for Multinomial Proportions for Small Counts in a Large Number of Cells”. Journal of Statistical Software 5, no. 6 (May 25, 2000): 1–24. Accessed March 28, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v005i06.