TY  - JOUR
AU  - A. A. Gavrilov
AU  - O. M. Penkin
TI  - An analog of the lemma on the normal derivative for an elliptic equation on a stratified set
JO  - Differencialʹnye uravneniâ
PY  - 2000
SP  - 226
EP  - 232
VL  - 36
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2000_36_2_a10/
LA  - ru
ID  - DE_2000_36_2_a10
ER  -