- Lyudmila Sergeevna Efremova, Elena Nikolaevna Makhrova, “Одномерные динамические системы”, Успехи математических наук, 76, № 5(461), 2021, 81
- L. S. Efremova, “Geometrically Integrable Maps in the Plane and Their Periodic Orbits”, Lobachevskii J Math, 42, № 10, 2021, 2315
- L. S. Efremova, E. N. Makhrova, “One-dimensional dynamical systems”, Russ. Math. Surv., 76, № 5, 2021, 821
- L.S. Efremova, “Small C
1-smooth perturbations of skew products and the partial integrability property”, Applied Mathematics and Nonlinear Sciences, 5, № 2, 2020, 317
- Lyudmila S. Efremova, “Introduction to Completely Geometrically Integrable Maps in High Dimensions”, Mathematics, 11, № 4, 2023, 926
- L. S. Efremova, “Ramified continua as global attractors of
C
1
-smooth self-maps of a cylinder close to skew products”, Journal of Difference Equations and Applications, 29, № 9-12, 2023, 1244