TY  - JOUR
AU  - M. Sh. Birman
TI  - Scattering problems for differential operators with constant coefficients
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1969
SP  - 1
EP  - 16
VL  - 3
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1969_3_3_a0/
LA  - ru
ID  - FAA_1969_3_3_a0
ER  -