TY  - JOUR
AU  - N. N. Ural'tseva
TI  - On impossibility of $W_q^2$-estimates for the elliptic equations in several variables with discontinuous coefficients
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1967
SP  - 250
EP  - 254
VL  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1967_5_a10/
LA  - ru
ID  - ZNSL_1967_5_a10
ER  -