B. Ya. Kazarnovskii, A. G. Khovanskii, A. I. Esterov, “Newton polytopes and tropical geometry”, Russian Math. Surveys, 76:1 (2021), 91–175
K. Kh. Boimatov, “On the equivalence of zero boundary conditions to an integral condition in the Dirichlet problem”, Russian Math. Surveys, 48:3 (1993), 185–187
V. N. Karpushkin, “Precise order bounds for the number of components of the complement of the zeros of harmonic polynomials”, Funct. Anal. Appl., 19:4 (1985), 295–299
A. A. Shkalikov, “Theorems of Tauberian type on the distribution of zeros of holomorphic functions”, Math. USSR-Sb., 51:2 (1985), 315–344
Yu. B. Orochko, “Finite local propagation rate of a hyperbolic equation in the problem of selfadjointness of powers of a second order elliptic differential operator”, Math. USSR-Izv., 22:2 (1984), 277–290
V. A. Mikhailets, “Distribution of eigenvalues of operators which are nearly self-adjoint”, Funct. Anal. Appl., 15:1 (1981), 62–64