TY - JOUR AU - Mikhail B. Sevryuk TI - Three Examples in the Dynamical Systems Theory JO - Symmetry, integrability and geometry: methods and applications PY - 2022 VL - 18 UR - http://geodesic.mathdoc.fr/item/SIGMA_2022_18_a83/ LA - en ID - SIGMA_2022_18_a83 ER -