TY  - JOUR
AU  - D. R. Yafaev
TI  - The virial theorem and conditions for wave operators to be unitary in scattering by a~nonstationary potential
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1983
SP  - 210
EP  - 217
VL  - 159
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1983_159_a13/
LA  - ru
ID  - TM_1983_159_a13
ER  -