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@article{DAN_1964_158_1_a10, author = {A. G. Sigalov}, title = {A new algorithm in the theory of perturbations of the continuous spectrum}, journal = {Doklady Akademii Nauk}, pages = {49--52}, publisher = {mathdoc}, volume = {158}, number = {1}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_158_1_a10/} }
A. G. Sigalov. A new algorithm in the theory of perturbations of the continuous spectrum. Doklady Akademii Nauk, Tome 158 (1964) no. 1, pp. 49-52. http://geodesic.mathdoc.fr/item/DAN_1964_158_1_a10/