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@article{TM_1988_179_a5, author = {E. M. Il'in}, title = {Scattering by unbounded obstacles for second-order elliptic operators}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {80--101}, publisher = {mathdoc}, volume = {179}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1988_179_a5/} }
E. M. Il'in. Scattering by unbounded obstacles for second-order elliptic operators. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Boundary value problems of mathematical physics. Part 13, Tome 179 (1988), pp. 80-101. http://geodesic.mathdoc.fr/item/TM_1988_179_a5/