TY  - JOUR
AU  - M. V. Fedoryuk
TI  - Composition formulas for pseudodifferential operators and the stationary- phase method
JO  - Doklady Akademii Nauk
PY  - 1971
SP  - 309
EP  - 311
VL  - 196
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1971_196_2_a15/
LA  - ru
ID  - DAN_1971_196_2_a15
ER  -