@article{DAN_1969_184_2_a0,
     author = {V. V. Velichenko},
     title = {On the problem of invariance of dynamical systems},
     journal = {Doklady Akademii Nauk},
     pages = {263--266},
     publisher = {mathdoc},
     volume = {184},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_184_2_a0/}
}