%0 Journal Article %A A. I. Neishtadt %A D. V. Treschev %T Dynamical phenomena connected with stability loss of equilibria and periodic trajectories %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2021 %P 883-926 %V 76 %N 5 %U http://geodesic.mathdoc.fr/item/RM_2021_76_5_a2/ %G en %F RM_2021_76_5_a2