@article{IVM_1993_4_a7,
     author = {G. A. Leonov and D. V. Ponomarenko},
     title = {Criteria for the orbital stability of trajectories of dynamical systems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {88--94},
     publisher = {mathdoc},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1993_4_a7/}
}