Kaas, R.; Buhrman, J.M. (1980). Mean, Median and Mode in Binomial Distributions. Statistica Neerlandica. 34 (1): 13—18. doi:10.1111/j.1467-9574.1980.tb00681.x.
Hamza, K. (1995). The smallest uniform upper bound on the distance between the mean and the median of the binomial and Poisson distributions. Statistics & Probability Letters. 23: 21—25. doi:10.1016/0167-7152(94)00090-U.