TY  - JOUR
AU  - N. A. Shananin
TI  - On local unsolvability of differential equations with weighted derivatives
JO  - Sbornik. Mathematics
PY  - 1981
SP  - 417
EP  - 428
VL  - 39
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1981_39_3_a6/
LA  - en
ID  - SM_1981_39_3_a6
ER  -