TY  - JOUR
AU  - M. L. Gromov
TI  - Smoothing and inversion of differential operators
JO  - Sbornik. Mathematics
PY  - 1972
SP  - 381
EP  - 435
VL  - 17
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1972_17_3_a4/
LA  - en
ID  - SM_1972_17_3_a4
ER  -