BabiluaP., and NadarayaE. “On One Homogeneity Test Based on the Kernel-Type estimators of the Distribution Density”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 71, no. 4, Apr. 2019, pp. 443-54, http://umj.imath.kiev.ua/index.php/umj/article/view/1450.