TY - JOUR AU - A. L. Belopol'skii AU - M. Sh. Birman TI - The existence of wave operators in scattering theory for pairs of JO - Izvestiya. Mathematics PY - 1968 SP - 1117 EP - 1130 VL - 2 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1968_2_5_a10/ LA - en ID - IM2_1968_2_5_a10 ER -