@article{DE_1979_15_12_a2,
     author = {Ya. M. Gol'tser},
     title = {The stability of a neutral fixed point of autonomous mappings in the presence of resonance},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2130--2141},
     publisher = {mathdoc},
     volume = {15},
     number = {12},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_12_a2/}
}