1. V. I. Tikhonov, Radiotekhnika i elektronika, 9, 371, 1964.
2. V. A. Markelov, Izv. VUZ. Radiofizika, 7, 502, 1964.
3. D. Middleton, Introduction to Statistical Communication Theory [Russian translation], izd. Sov. Radio, Moscow, 1961.
4. E. T. Whittaker and G. N. Watson, A Course in Modern Analysis [Russian translation] vol. 2, GIFML, Moscow, 1963.
5. I. M. Ryzhik and I. S. Gradshtein, Tables of Integrals, Sums, Series, and Products [in Russian], GIFML, Moscow, 1963.