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A. M. Gaisin, “Estimates of the growth and decrease on curves of an entire function of infinite order”, Sb. Math., 194:8 (2003), 1167–1194
A. M. Gaisin, I. D. Latypov, “Asymptotics of the logarithm of the maximal term of a modified Dirichlet series”, Russian Math. (Iz. VUZ), 46:9 (2002), 13–22
A. M. Gaisin, “Maximal Term of the Modified Dirichlet Series”, Math. Notes, 69:6 (2001), 756–769