Mykchailova, T. F., and Y. A Maksymenkova. “The Problem of Minimax Estimation of Functionals for Non-Stationary Diffusion Processes”. Science and Transport Progress , no. 6(96) (December 20, 2021): 77–83. Accessed April 29, 2024. https://stp.ust.edu.ua/article/view/257929.