TY - JOUR AU - D. R. Yafaev TI - Eikonal approximation for the Schr\"odinger equation JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1988 SP - 226 EP - 240 VL - 179 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1988_179_a11/ LA - ru ID - TM_1988_179_a11 ER -