M. L. Kleptsyna, Marushkevych, D. A. , and Chigansky, P. Yu. . 2020. “Asymptotic Accuracy In Estimation Of A Fractional Signal In A Small White Noise”. Automation And Remote Control, 81, 3, Pp. 411–429. https://link.springer.com/article/10.1134/S0005117920030030.