TY  - JOUR
AU  - S. V. Uspenskii
TI  - The representation of functions defined by a certain class of hypoelliptic operators
JO  - Informatics and Automation
PY  - 1972
SP  - 292
EP  - 299
VL  - 117
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a14/
LA  - ru
ID  - TRSPY_1972_117_a14
ER  -