@article{DE_2001_37_4_a8,
     author = {V. F. Butuzov and V. V. Kiryushin},
     title = {A {Two-Dimensional} {Step-Like} {Contrast} {Structure} in the {Case} of a {Multiple} {Root} of the {Transition} {Line} {Equation}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {495--510},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2001_37_4_a8/}
}