Chekotovskyi Е.V. and Potapova, M.Y. 2015. Issues of Statistical Science in Works of O. O. Rusov: Commemorating the 100th Anniversary since His Death: Issues of Statistical Science in Works of O. O. Rusov: Commemorating the 100th Anniversary since His Death. Statistics of Ukraine. 3(70) (Sep. 2015), 74–78.