TY - JOUR AU - Yafaev, D. TI - Scattering theory: Some old and new problems JO - Documenta mathematica PY - 1998 SP - 87 EP - 96 VL - ICM Berlin 1998, Vol. III PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DOCMA_1998__S9__a69/ LA - en ID - DOCMA_1998__S9__a69 ER -