TY  - JOUR
AU  - V. G. Hryptun
TI  - Function classes quasianalytic relative to first order partial differential operators
JO  - Sbornik. Mathematics
PY  - 1968
SP  - 17
EP  - 31
VL  - 6
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1968_6_1_a1/
LA  - en
ID  - SM_1968_6_1_a1
ER  -