@article{IVM_1997_1_a9,
     author = {N. G. Bil'chenko and V. A. Ovchinnikov},
     title = {On a {Lie} group that admits a nonlinear system of partial differential equations of parabolic type},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {69--74},
     publisher = {mathdoc},
     number = {1},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1997_1_a9/}
}