@article{DE_1992_28_9_a4,
     author = {A. Yu. Kravchuk and G. A. Leonov and D. V. Ponomarenko},
     title = {Criteria for strong orbital stability of trajectories of dynamical systems. {I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1507--1520},
     publisher = {mathdoc},
     volume = {28},
     number = {9},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_9_a4/}
}