@article{DE_1998_34_8_a2,
     author = {V. F. Butuzov and V. V. Kiryushin},
     title = {A step-type contrast structure in the case of a multiple root of the equation for a transition point},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1029--1038},
     publisher = {mathdoc},
     volume = {34},
     number = {8},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_8_a2/}
}