TY  - JOUR
AU  - S. Ya. L'vin
TI  - On a class of degenerate differential equations of higher order
JO  - Doklady Akademii Nauk
PY  - 1975
SP  - 42
EP  - 45
VL  - 223
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1975_223_1_a9/
LA  - ru
ID  - DAN_1975_223_1_a9
ER  -