@article{IVM_1994_7_a1,
     author = {E. V. Voskresenskii},
     title = {Lyapunov groups of transformations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {13--19},
     publisher = {mathdoc},
     number = {7},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1994_7_a1/}
}