@article{DE_1994_30_10_a23,
     author = {T. V. Chekmarev},
     title = {Formulas for the solution of the {Tricomi} problem for the {Lavrent'ev--Bitsadze} system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1828--1829},
     publisher = {mathdoc},
     volume = {30},
     number = {10},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_10_a23/}
}