@article{DE_1996_32_4_a18,
     author = {O. A. Repin},
     title = {The {Tricomi} problem for an equation of mixed type in a domain whose elliptic part is a half-strip},
     journal = {Differencialʹnye uravneni\^a},
     pages = {565--567},
     publisher = {mathdoc},
     volume = {32},
     number = {4},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_4_a18/}
}