@article{DE_1986_22_2_a4,
     author = {I. P. Martynov},
     title = {Third-order systems without moving critical singularities},
     journal = {Differencialʹnye uravneni\^a},
     pages = {209--215},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_2_a4/}
}