@article{DE_1985_21_9_a25,
     author = {M. E. Kostyukovich},
     title = {On the question of the absence of moving critical singular points in a special second-order system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1628--1630},
     publisher = {mathdoc},
     volume = {21},
     number = {9},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_9_a25/}
}