@article{DE_1996_32_3_a10,
     author = {A. N. Zarubin},
     title = {An analogue of the {Tricomi} problem for an equation of mixed type with retarded argument},
     journal = {Differencialʹnye uravneni\^a},
     pages = {350--356},
     publisher = {mathdoc},
     volume = {32},
     number = {3},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_3_a10/}
}