TY  - JOUR
AU  - N. M. Ivochkina
TI  - Second-order differential equations with $d$-elliptic operators
JO  - Informatics and Automation
PY  - 1980
SP  - 40
EP  - 56
VL  - 147
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1980_147_a3/
LA  - ru
ID  - TRSPY_1980_147_a3
ER  -