1. Statistics of Regenerative Digital Transmission
2. Chow, Y. S., and Teicher, H. (2012), Probability theory: independence, interchangeability, martingales. Springer Science & Business Media.
3. A Course in Operator Theory
4. Stochastic Differential Equations in Infinite Dimensions
5. Gladyshev, E. G. (1961), Periodically correlated random sequences. Soviet Math. Dokl., 2, 385-388.