M. V. Karasev, E. M. Novikova, E. V. Vybornyi, “Instantons via Breaking Geometric Symmetry in Hyperbolic Traps”, Матем. заметки, 102:6 (2017), 776–786; M. V. Karasev, E. M. Novikova, E. V. Vybornyi, “Instantons via Breaking Geometric Symmetry in Hyperbolic Traps”, Math. Notes, 102:6 (2017), 776–786
M. Karasev, E. Novikova, E. Vybornyi, “Bi-states and 2-level systems in rectangular Penning traps”, Russ. J. Math. Phys., 24:4 (2017), 454
Е. В. Выборный, “Туннельное расщепление спектра и билокализация собственных функций в несимметричной двойной яме”, ТМФ, 178:1 (2014), 107–130; E. V. Vybornyi, “Tunnel splitting of the spectrum and bilocalization of eigenfunctions in an asymmetric double well”, Theoret. and Math. Phys., 178:1 (2014), 93–114