@article{DE_1994_30_5_a19,
     author = {V. N. Gorbuzov},
     title = {Construction of differential systems from an infinitesimal operator and a universal invariant of a one-parameter group of transformations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {899--901},
     publisher = {mathdoc},
     volume = {30},
     number = {5},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_5_a19/}
}