TY  - JOUR
AU  - F. A. Tagiev
AU  - T. G. Kyazimov
TI  - Existence, uniqueness and approximate solution of a boundary value problem for an equation of mixed type
JO  - Differencialʹnye uravneniâ
PY  - 1984
SP  - 128
EP  - 132
VL  - 20
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1984_20_1_a15/
LA  - ru
ID  - DE_1984_20_1_a15
ER  -