- Lyudmila S. Efremova, “Introduction to Completely Geometrically Integrable Maps in High Dimensions”, Mathematics, 11, № 4, 2023, 926
- Lyudmila S. Efremova, “$C^{1}$-Smooth $\Omega$-Stable Skew Products and Completely Geometrically Integrable Self-Maps of 3D-Tori, I: $\Omega$-Stability”, Regul. Chaot. Dyn., 29, № 3, 2024, 491