TY  - JOUR
AU  - A. A. Novruzov
TI  - On an approach to the study of qualitative properties of solutions of nondivergence elliptic equations of second order
JO  - Sbornik. Mathematics
PY  - 1985
SP  - 343
EP  - 367
VL  - 50
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1985_50_2_a3/
LA  - en
ID  - SM_1985_50_2_a3
ER  -