TY  - JOUR
AU  - V. S. Mokeichev
TI  - Certain boundary value problems and their approximate solutions
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1730
EP  - 1733
VL  - 9
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_9_a21/
LA  - ru
ID  - DE_1973_9_9_a21
ER  -