@article{DE_1997_33_3_a19,
     author = {N. S. Berezkina and I. P. Martynov and V. A. Pron'ko},
     title = {On a third-order system with a cubic nonlinearity},
     journal = {Differencialʹnye uravneni\^a},
     pages = {416--417},
     publisher = {mathdoc},
     volume = {33},
     number = {3},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_3_a19/}
}