TY  - JOUR
AU  - A. A. Dezin
TI  - On weak and strong irregularity
JO  - Differencialʹnye uravneniâ
PY  - 1981
SP  - 1851
EP  - 1858
VL  - 17
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1981_17_10_a12/
LA  - ru
ID  - DE_1981_17_10_a12
ER  -