TY  - JOUR
AU  - S. D. Èidel'man
AU  - V. A. Kondratiev
TI  - Certain properties of the positive solutions of evolutionary hypoelliptic equations
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 1027
EP  - 1030
VL  - 184
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_184_5_a1/
LA  - ru
ID  - DAN_1969_184_5_a1
ER  -