TY  - JOUR
AU  - P. P. Zabreiko
AU  - V. I. Nazarov
TI  - Smoothness properties of solutions of nonlinear differential equations
JO  - Sbornik. Mathematics
PY  - 1992
SP  - 135
EP  - 150
VL  - 72
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1992_72_1_a7/
LA  - en
ID  - SM_1992_72_1_a7
ER  -