TY  - JOUR
AU  - V. F. Butuzov
TI  - The construction of boundary functions in certain singularly perturbed problems of elliptic type
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 1829
EP  - 1835
VL  - 13
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_10_a13/
LA  - ru
ID  - DE_1977_13_10_a13
ER  -