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@article{DAN_1992_326_1_a0, author = {I. L. Barskii}, title = {On the behavior of the spectrum of some linear multipoint boundary}, journal = {Doklady Akademii Nauk}, pages = {9--11}, publisher = {mathdoc}, volume = {326}, number = {1}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1992_326_1_a0/} }
I. L. Barskii. On the behavior of the spectrum of some linear multipoint boundary. Doklady Akademii Nauk, Tome 326 (1992) no. 1, pp. 9-11. http://geodesic.mathdoc.fr/item/DAN_1992_326_1_a0/