2 citations to https://www.mathnet.ru/eng/pa233

1. A. S. Krivosheev, O. A. Krivosheeva, “Domain of Existence of the Sum of a Series of Exponential Monomials”, Math. Notes, 114:4 (2023), 508–521        
2. A. Krivosheev, O. Krivosheeva, “Representation of Analytic Functions by Series of Exponential Monomials in Convex Domains and Its Applications”, Lobachevskii J Math, 40:9 (2019), 1330