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@article{FAA_1969_3_3_a0, author = {M. Sh. Birman}, title = {Scattering problems for differential operators with constant coefficients}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {1--16}, publisher = {mathdoc}, volume = {3}, number = {3}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1969_3_3_a0/} }
M. Sh. Birman. Scattering problems for differential operators with constant coefficients. Funkcionalʹnyj analiz i ego priloženiâ, Tome 3 (1969) no. 3, pp. 1-16. http://geodesic.mathdoc.fr/item/FAA_1969_3_3_a0/