1. G. Pólya, “Untersuchungen über Lücken und Singularitäten von Potenzeihen,” Math. Z. 29, 549–640 (1929).
2. A. M. Gaisin and I.D. Latypov, “Asymptotic Behavior of the Sum of the Dirichlet Series of Prescribed Growth on Curves,” Matem. Zametki 78(1), 37–51 (2005).
3. A. F. Leont’ev, Sequences of Exponential Polynomials (Nauka, Moscow, 1980) [in Russian].
4. A. M. Gaisin, “Estimates of the Growth and Decrease on Curves of an Entire Function of Infinite Order,” Matem. Sborn. 194(8) 55–82 (2002).
5. N. N. Yusupova, “Stability of the Maximal Term of the Dirichlet Series Taken in the Logarithmic Form,” in Scientific traineeship of young researchers “Modern Informational and Computer Technology in Engineer-Scientific Research,” Vol. I, Part 2 (Ufa, RIO BashGU, 2005), pp. 309–315.