TY  - JOUR
AU  - V. F. Butuzov
TI  - An angular boundary layer in singularly perturbed problems with partial derivatives
JO  - Differencialʹnye uravneniâ
PY  - 1979
SP  - 1848
EP  - 1862
VL  - 15
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1979_15_10_a12/
LA  - ru
ID  - DE_1979_15_10_a12
ER  -