@article{DE_1986_22_4_a17,
     author = {B. U. Aubakirov and T. Sh. Kal'menov},
     title = {Local boundary value problems with departure from the characteristic for the {Lavrent'ev--Bitsadze} equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {700--702},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_4_a17/}
}