@article{DE_1984_20_10_a7,
     author = {Yu. V. Malyshev},
     title = {Qualitative investigation of critical cases of stability of motion},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1715--1720},
     publisher = {mathdoc},
     volume = {20},
     number = {10},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_10_a7/}
}