@article{DE_1994_30_4_a3,
     author = {M. V. Shashkov and L. P. Shilnikov},
     title = {On the existence of a smooth invariant foliation in {Lorenz-type} mappings},
     journal = {Differencialʹnye uravneni\^a},
     pages = {586--595},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_4_a3/}
}