L. S. Efremova, “Nonwandering Sets of C 1-Smooth Skew Products of Interval Maps with Complicated Dynamics of Quotient Map”, J Math Sci, 219, no. 1, 2016, 86
Lyudmila Sergeevna Efremova, “Динамика косых произведений отображений интервала”, Успехи математических наук, 72, no. 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, no. 2, 2016, 77
L. Efremova, “Absence of C 1- Ω-Explosion in the Space of Smooth Simplest Skew Products”, J Math Sci, 202, no. 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, no. 7, 2022, 1598
L. S. Efremova, “Small perturbations of smooth skew products and Sharkovsky's theorem”, Journal of Difference Equations and Applications, 26, no. 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, no. 2, 2020, 317