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- Anton E. Kulagin, Alexander V. Shapovalov, Andrey Y. Trifonov, “Semiclassical Spectral Series Localized on a Curve for the Gross–Pitaevskii Equation with a Nonlocal Interaction”, Symmetry, 13, no. 7, 2021, 1289
- Alexander V. Shapovalov, Anton E. Kulagin, “Semiclassical Approach to the Nonlocal Kinetic Model of Metal Vapor Active Media”, Mathematics, 9, no. 23, 2021, 2995