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@article{TM_1988_179_a11, author = {D. R. Yafaev}, title = {Eikonal approximation for the {Schr\"odinger} equation}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {226--240}, publisher = {mathdoc}, volume = {179}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1988_179_a11/} }
D. R. Yafaev. Eikonal approximation for the Schr\"odinger equation. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Boundary value problems of mathematical physics. Part 13, Tome 179 (1988), pp. 226-240. http://geodesic.mathdoc.fr/item/TM_1988_179_a11/