Averaging theory for finding periodic solutions of Carathéodory differential equat...
Topological methods in the study of periodic solutions of non-smooth differential ...
Invariant Sets in differential Dynamical Systems: Periodic orbits, Invariant Tori ...
Averaging Theory for studying the periodic solutions of the differential systems a...
Symmetry theory-based approaches for the computation of mode shapes of vibrating s...
Introduction to the qualitative theory of differential equations
Degenerate parabolic-hyperbolic equations and averaging lemmas