TY  - JOUR
AU  - A. F. Filippov
TI  - Smoothness of generalized solutions near the vertex of a polyhedral angle
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1889
EP  - 1903
VL  - 9
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_10_a15/
LA  - ru
ID  - DE_1973_9_10_a15
ER  -