TY  - JOUR
AU  - G. G. Kazaryan
TI  - The comparison of differential operators and differential operators of constant strength
JO  - Informatics and Automation
PY  - 1974
SP  - 94
EP  - 118
VL  - 131
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1974_131_a8/
LA  - ru
ID  - TRSPY_1974_131_a8
ER  -