@article{DE_1988_24_3_a21,
     author = {A. A. Kosovets},
     title = {Uniqueness of the solution of the {Tricomi} problem for an equation of mixed type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {523--525},
     publisher = {mathdoc},
     volume = {24},
     number = {3},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_3_a21/}
}