1. B. Ya. Levin, Distribution of Roots of Entire Functions [in Russian], Gostekhizdat, Moscow (1956).
2. A. A. Gol’dberg, “B.Ya. Levin, the founder of the theory of functions of completely regular growth,” Mat. Fiz., Anal., Geom., 1, No. 2, 186–192 (1994).
3. A. A. Gol’dberg, B. Ya. Levin, and I. V. Ostrovskii, “Entire and meromorphic functions,” in: VINITI Series in Contemporary Problems of Mathematics, Fundamental Trends [in Russian], Vol. 85, VINITI, Moscow (1991), pp. 5–186.
4. V. S. Azarin, “On the regularity of growth of Fourier coefficients of the logarithm of modulus of an entire function,” Teor. Funkts. Funkts. Anal. Prilozhen., Issue 27, 9–21 (1977).
5. A. A. Kondratyuk, Fourier Series and Meromorphic Functions [in Russian], Vyshcha Shkola, Lviv (1988).