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E. V. Vybornyi, S. V. Rumyantseva, “Tunneling with oscillating effect of ground states of a quadratic operator on a hyperboloid”, Mat. Zametki, 116:6 (2024), 862–880; Math. Notes, 116:6 (2024), 1233–1248
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E. V. Vybornyi, S. V. Rumyantseva, “Semiclassical Asymptotics of Oscillating Tunneling for a Quadratic Hamiltonian on the Algebra $\operatorname{su}(1,1)$”, Mat. Zametki, 112:5 (2022), 665–681; Math. Notes, 112:5 (2022), 642–655
