L. S. Efremova, “Nonwandering Sets of C 1-Smooth Skew Products of Interval Maps with Complicated Dynamics of Quotient Map”, J Math Sci, 219, № 1, 2016, 86
Lyudmila Sergeevna Efremova, “Динамика косых произведений отображений интервала”, Успехи математических наук, 72, № 1(433), 2017, 107
L. S. Efremova, “Multivalued functions and nonwandering set of skew products of maps of an interval with complicated dynamics of quotient map”, Russ Math., 60, № 2, 2016, 77
L. Efremova, “Absence of C 1- Ω-Explosion in the Space of Smooth Simplest Skew Products”, J Math Sci, 202, № 6, 2014, 794
L. S. Efremova, “Simplest Skew Products on $\boldsymbol{n}$-Dimensional ($\boldsymbol{n\geq 2}$) Cells, Cylinders and Tori”, Lobachevskii J Math, 43, № 7, 2022, 1598
L. S. Efremova, “Small perturbations of smooth skew products and Sharkovsky's theorem”, Journal of Difference Equations and Applications, 26, № 8, 2020, 1192
Lyudmila S. Efremova, “Stability as a Whole of a Family of Fibers Maps and Ω-Stability ofC1-Smooth Skew Products of Maps of an Interval”, J. Phys.: Conf. Ser., 692, 2016, 012010
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